CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Extended file attributes - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"299b26d3-ccc1-45cd-8620-cd27ab5102ee","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Extended_file_attributes","wgTitle":"Extended file attributes","wgCurRevisionId":1209460921,"wgRevisionId":1209460921,"wgArticleId":3461936,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Articles with short description","Short description matches Wikidata","All articles with unsourced statements","Articles with unsourced statements from July 2020","Articles with unsourced statements from September 2012","Articles with unsourced statements from October 2012","Computer file systems","Metadata"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Extended_file_attributes", "wgRelevantArticleId":3461936,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgRedirectedFrom":"Extended_attributes","wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":20000,"wgInternalRedirectTargetUrl":"/wiki/Extended_file_attributes","wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q2085509", "wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","ext.pygments":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["mediawiki.action.view.redirect","ext.cite.ux-enhancements","ext.pygments.view","site","mediawiki.page.ready", "jquery.makeCollapsible","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.quicksurveys.init","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.pygments%2CwikimediaBadges%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.5"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Extended file attributes - Wikipedia"> <meta property="og:type" content="website"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/Extended_file_attributes"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=Extended_file_attributes&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/Extended_file_attributes"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Extended_file_attributes rootpage-Extended_file_attributes skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=Extended+file+attributes" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=Extended+file+attributes" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=Extended+file+attributes" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Extended+file+attributes" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Implementations" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Implementations"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Implementations</span> </div> </a> <button aria-controls="toc-Implementations-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Implementations subsection</span> </button> <ul id="toc-Implementations-sublist" class="vector-toc-list"> <li id="toc-AIX" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#AIX"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>AIX</span> </div> </a> <ul id="toc-AIX-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-BeOS/Haiku" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#BeOS/Haiku"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>BeOS/Haiku</span> </div> </a> <ul id="toc-BeOS/Haiku-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-FreeBSD" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#FreeBSD"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>FreeBSD</span> </div> </a> <ul id="toc-FreeBSD-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Linux" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Linux"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>Linux</span> </div> </a> <ul id="toc-Linux-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-macOS" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#macOS"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.5</span> <span>macOS</span> </div> </a> <ul id="toc-macOS-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-OpenBSD" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#OpenBSD"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.6</span> <span>OpenBSD</span> </div> </a> <ul id="toc-OpenBSD-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-OS/2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#OS/2"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.7</span> <span>OS/2</span> </div> </a> <ul id="toc-OS/2-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Solaris" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Solaris"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.8</span> <span>Solaris</span> </div> </a> <ul id="toc-Solaris-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Windows_NT" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Windows_NT"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.9</span> <span>Windows NT</span> </div> </a> <ul id="toc-Windows_NT-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Extended file attributes</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 9 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-9" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">9 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Roz%C5%A1%C3%AD%C5%99en%C3%A9_atributy_souboru" title="Rozšířené atributy souboru – Czech" lang="cs" hreflang="cs" data-title="Rozšířené atributy souboru" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Attributs_%C3%A9tendus" title="Attributs étendus – French" lang="fr" hreflang="fr" data-title="Attributs étendus" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%99%95%EC%9E%A5_%ED%8C%8C%EC%9D%BC_%EC%86%8D%EC%84%B1" title="확장 파일 속성 – Korean" lang="ko" hreflang="ko" data-title="확장 파일 속성" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Attributi_estesi" title="Attributi estesi – Italian" lang="it" hreflang="it" data-title="Attributi estesi" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%8B%A1%E5%BC%B5%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E5%B1%9E%E6%80%A7" title="拡張ファイル属性 – Japanese" lang="ja" hreflang="ja" data-title="拡張ファイル属性" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Utvidede_filattributter" title="Utvidede filattributter – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Utvidede filattributter" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Rozszerzone_atrybuty_pliku" title="Rozszerzone atrybuty pliku – Polish" lang="pl" hreflang="pl" data-title="Rozszerzone atrybuty pliku" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Atributos_estendidos_de_arquivo" title="Atributos estendidos de arquivo – Portuguese" lang="pt" hreflang="pt" data-title="Atributos estendidos de arquivo" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%89%A9%E5%B1%95%E6%96%87%E4%BB%B6%E5%B1%9E%E6%80%A7" title="扩展文件属性 – Chinese" lang="zh" hreflang="zh" data-title="扩展文件属性" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q2085509#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Extended_file_attributes" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Extended_file_attributes" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Extended_file_attributes"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Extended_file_attributes"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Extended_file_attributes" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Extended_file_attributes" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&oldid=1209460921" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=Extended_file_attributes&id=1209460921&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FExtended_file_attributes"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FExtended_file_attributes"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Extended_file_attributes&action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Extended_file_attributes&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q2085509" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=Extended_attributes&redirect=no" class="mw-redirect" title="Extended attributes">Extended attributes</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Set of file system features</div> <p><b>Extended file attributes</b> are <a href="/wiki/File_system" title="File system">file system</a> features that enable users to associate <a href="/wiki/Computer_file" title="Computer file">computer files</a> with <a href="/wiki/Metadata" title="Metadata">metadata</a> not interpreted by the filesystem, whereas regular attributes have a purpose strictly defined by the filesystem (such as <a href="/wiki/File_system_permissions" class="mw-redirect" title="File system permissions">permissions</a> or records of creation and modification times). Unlike <a href="/wiki/Fork_(file_system)" title="Fork (file system)">forks</a>, which can usually be as large as the maximum file size, extended attributes are usually limited in size to a value significantly smaller than the maximum file size. Typical uses include storing the author of a document, the <a href="/wiki/Character_encoding" title="Character encoding">character encoding</a> of a plain-text document, or a <a href="/wiki/Cyclic_redundancy_check" title="Cyclic redundancy check">checksum</a>, <a href="/wiki/Cryptographic_hash" class="mw-redirect" title="Cryptographic hash">cryptographic hash</a> or <a href="/wiki/Digital_certificate" class="mw-redirect" title="Digital certificate">digital certificate</a>, and <a href="/wiki/Discretionary_access_control" title="Discretionary access control">discretionary access control</a> information. </p><p>In <a href="/wiki/Unix-like" title="Unix-like">Unix-like</a> systems, extended attributes are usually abbreviated as <b>xattr</b>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Implementations">Implementations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=1" title="Edit section: Implementations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="AIX">AIX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=2" title="Edit section: AIX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/AIX" class="mw-redirect" title="AIX">AIX</a>, the JFS2 v2 filesystem supports extended attributes, which are accessible using the <style data-mw-deduplicate="TemplateStyles:r886049734">.mw-parser-output .monospaced{font-family:monospace,monospace}</style><span class="monospaced">getea</span> command.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">getea</span>,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">setea</span>,<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">listea</span>,<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">statea</span>,<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> and <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">removeea</span><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> APIs support fetching, setting, listing, getting information about, and removing extended attributes. </p> <div class="mw-heading mw-heading3"><h3 id="BeOS/Haiku"><span id="BeOS.2FHaiku"></span>BeOS/Haiku</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=3" title="Edit section: BeOS/Haiku"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the now-defunct <a href="/wiki/BeOS" title="BeOS">BeOS</a> and successors like <a href="/wiki/Haiku_(operating_system)" title="Haiku (operating system)">Haiku</a>, extended file attributes are widely used in base and third-party programs. The <a href="/wiki/Be_File_System" title="Be File System">Be File System</a> allows the indexing and querying of attributes, essentially giving the filesystem <a href="/wiki/Relational_Database" class="mw-redirect" title="Relational Database">database</a>-like characteristics. The uses of extended attributes in Be-like systems are varied: For example, <a href="/wiki/Tracker_(file_manager)" class="mw-redirect" title="Tracker (file manager)">Tracker</a> and <a href="/wiki/OpenTracker" class="mw-redirect" title="OpenTracker">OpenTracker</a>, the file-managers of BeOS and Haiku respectively, both store the locations of file icons in attributes,<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Haiku's "Mail" service stores all message content and metadata in extended file attributes,<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> and the MIME types of files are stored in their attributes. Extended file attributes can be viewed and edited in Be-like systems' GUI through the file-manager, often Tracker or derivatives thereof. </p> <div class="mw-heading mw-heading3"><h3 id="FreeBSD">FreeBSD</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=4" title="Edit section: FreeBSD"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a> 5.0 and later, the <a href="/wiki/Unix_File_System" title="Unix File System">UFS1</a>, UFS2, and ZFS filesystems support extended attributes, using the <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">extattr_</span><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> family of system calls. Any regular file may have a list of extended attributes. Each attribute consists of a name and the associated data. The name must be a <a href="/wiki/Null-terminated_string" title="Null-terminated string">null-terminated string</a>, and exists in a namespace identified by a small-integer namespace identifier. Currently, two namespaces exist: user and system. The user namespace has no restrictions with regard to naming or contents. The system namespace is primarily used by the kernel for <a href="/wiki/Access_control_list" class="mw-redirect" title="Access control list">access control lists</a> and <a href="/wiki/Mandatory_access_control" title="Mandatory access control">mandatory access control</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Linux">Linux</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=5" title="Edit section: Linux"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/Linux" title="Linux">Linux</a>, the <a href="/wiki/Ext2" title="Ext2">ext2</a>, <a href="/wiki/Ext3" title="Ext3">ext3</a>, <a href="/wiki/Ext4" title="Ext4">ext4</a>, <a href="/wiki/JFS_(file_system)" title="JFS (file system)">JFS</a>, <a href="/wiki/Squashfs" class="mw-redirect" title="Squashfs">Squashfs</a>, <a href="/wiki/UBIFS" title="UBIFS">UBIFS</a>, <a href="/wiki/YAFFS" title="YAFFS">Yaffs2</a>, <a href="/wiki/ReiserFS" title="ReiserFS">ReiserFS</a>, <a href="/wiki/Reiser4" title="Reiser4">Reiser4</a>, <a href="/wiki/XFS" title="XFS">XFS</a>, <a href="/wiki/Btrfs" title="Btrfs">Btrfs</a>, <a href="/wiki/OrangeFS" title="OrangeFS">OrangeFS</a>, <a href="/wiki/Lustre_(file_system)" title="Lustre (file system)">Lustre</a>, <a href="/wiki/OCFS2" title="OCFS2">OCFS2 1.6</a>, <a href="/wiki/ZFS" title="ZFS">ZFS</a>, and <a href="/wiki/F2FS" title="F2FS">F2FS</a><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> filesystems support extended attributes (abbreviated <i>xattr</i>) when enabled in the kernel configuration. Any regular file or directory may have extended attributes consisting of a name and associated data. The name must be a <a href="/wiki/Null-terminated_string" title="Null-terminated string">null-terminated string</a> prefixed by a <a href="/wiki/Namespace" title="Namespace">namespace</a> identifier and a dot character. Currently, four namespaces exist: user, trusted, security and system. The user namespace has no restrictions with regard to naming or contents. The system namespace is primarily used by the kernel for <a href="/wiki/Access_control_list" class="mw-redirect" title="Access control list">access control lists</a>. The security namespace is used by <a href="/wiki/SELinux" class="mw-redirect" title="SELinux">SELinux</a>, for example. </p><p>Support for the extended attribute concept from a POSIX.1e draft<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (July 2020)">citation needed</span></a></i>]</sup> that had been withdrawn<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> in 1997 was added to Linux around 2002.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> As of 2016, they are not yet in widespread use by user-space Linux programs, but are used by <a href="/wiki/Beagle_(software)" title="Beagle (software)">Beagle</a>, <a href="/wiki/OpenStack#Object_storage_(Swift)" title="OpenStack">OpenStack Swift</a>, <a href="/wiki/Dropbox_(service)" class="mw-redirect" title="Dropbox (service)">Dropbox</a>, <a href="/wiki/KDE" title="KDE">KDE</a>'s semantic metadata framework (Baloo), <a href="/wiki/Chromium_(web_browser)" title="Chromium (web browser)">Chromium</a>, <a href="/wiki/Wget" title="Wget">Wget</a> and <a href="/wiki/CURL" title="CURL">cURL</a>. </p><p>The Linux kernel allows extended attribute to have names of up to 255 bytes and values of up to 64 KiB,<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> as do <a href="/wiki/XFS#Extended_attributes" title="XFS">XFS</a> and <a href="/wiki/ReiserFS" title="ReiserFS">ReiserFS</a>, but <a href="/wiki/Ext2" title="Ext2">ext2</a>/<a href="/wiki/Ext3" title="Ext3">3</a>/<a href="/wiki/Ext4" title="Ext4">4</a> and <a href="/wiki/Btrfs" title="Btrfs">btrfs</a> impose much smaller limits, requiring all the attributes (names and values) of one file to fit in one "filesystem block" (usually 4 KiB). Per POSIX.1e,<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (July 2020)">citation needed</span></a></i>]</sup> the names are required to start with one of <i>security</i>, <i>system</i>, <i>trusted</i>, and <i>user</i> plus a period. This defines the four namespaces of extended attributes.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>Extended attributes can be accessed and modified using the <code>getfattr</code> and <code>setfattr</code> commands from the <code>attr</code> package on most distributions.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> The APIs are called <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">getxattr</code> and <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">setxattr</code>. </p> <div class="mw-heading mw-heading3"><h3 id="macOS">macOS</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=6" title="Edit section: macOS"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Mac_OS_X_Tiger" title="Mac OS X Tiger">Mac OS X 10.4</a> and later support extended attributes by making use of the <a href="/wiki/HFS_Plus" title="HFS Plus">HFS+</a> filesystem Attributes File <a href="/wiki/B*-tree" class="mw-redirect" title="B*-tree">B*-tree</a> feature which allows for named forks. Although the named forks in HFS+ support arbitrarily large amounts of data through extents, the OS support for extended attributes only supports inline attributes, limiting their size to that which can fit within a single B*-tree node.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2012)">citation needed</span></a></i>]</sup> Any regular file may have a list of extended attributes. HFS+ supports an arbitrary number of named forks, and it is unknown if <a href="/wiki/MacOS" title="MacOS">macOS</a> imposes any limit on the number of extended attributes. </p><p>Each attribute consists of a name and the associated data. The name is a <a href="/wiki/Null-terminated_string" title="Null-terminated string">null-terminated</a> <a href="/wiki/Unicode" title="Unicode">Unicode</a> string. No namespace restrictions are present (making this an <i>open xattr</i> system) and the convention is to use a reverse DNS string (similar to <a href="/wiki/Uniform_Type_Identifier" title="Uniform Type Identifier">Uniform Type Identifiers</a>) as the attribute name. </p><p>macOS supports listing,<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> getting,<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> setting,<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> and removing<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> extended attributes from files or directories using a Linux-like API. From the command line, these abilities are exposed through the <i>xattr</i> utility.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p><p>Since macOS 10.5, files originating from the web are marked with <code>com.apple.quarantine</code> via extended file attributes.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> In some older versions of macOS (such as <a href="/wiki/Mac_OS_X_Snow_Leopard" title="Mac OS X Snow Leopard">Mac OS X 10.6</a>), user space extended attributes were not preserved on save in common <a href="/wiki/Cocoa_(API)" title="Cocoa (API)">Cocoa</a> applications (TextEdit, Preview etc.).<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2012)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading3"><h3 id="OpenBSD">OpenBSD</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=7" title="Edit section: OpenBSD"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Support for extended file attributes was removed from the <a href="/wiki/OpenBSD" title="OpenBSD">OpenBSD</a> source code in 2005 due to a lack of interest in <a href="/wiki/Access_Control_Lists" class="mw-redirect" title="Access Control Lists">Access Control Lists</a>.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="OS/2"><span id="OS.2F2"></span>OS/2</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=8" title="Edit section: OS/2"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In <a href="/wiki/OS/2" title="OS/2">OS/2</a> version 1.2 and later, the <a href="/wiki/High_Performance_File_System" title="High Performance File System">High Performance File System</a> was designed with extended attributes in mind, but support for them was also retro-fitted on the <a href="/wiki/File_Allocation_Table" title="File Allocation Table">FAT</a> filesystem of DOS. For compatibility with other operating systems using a FAT partition, OS/2 attributes are stored inside a single file "<code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">EA DATA. SF</code>" located in the root directory. This file is normally inaccessible when an operating system supporting extended attributes manages the disk, but can be freely manipulated under, for example, DOS. Files and directories having extended attributes use one or more <a href="/wiki/Cluster_(file_system)" class="mw-redirect" title="Cluster (file system)">clusters</a> inside this file. The logical cluster number of the first used cluster is stored inside the owning file's or directory's <a href="/wiki/FAT_extended_file_attributes" class="mw-redirect" title="FAT extended file attributes">directory entry</a>.<sup id="cite_ref-os2-fat-extended-attributes_25-0" class="reference"><a href="#cite_note-os2-fat-extended-attributes-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> These two bytes are used for other purposes on the FAT32 filesystem, and hence OS/2 extended attributes cannot be stored on this filesystem. </p><p>Parts of OS/2 version 2.0 and later such as the <a href="/wiki/Workplace_Shell" title="Workplace Shell">Workplace Shell</a> uses several standardized extended attributes (also called <i>EAs</i>) for purposes like identifying the filetype, comments, <a href="/wiki/Computer_icon" class="mw-redirect" title="Computer icon">computer icons</a> and keywords about the file. Programs written in the interpreted language <a href="/wiki/Rexx" title="Rexx">Rexx</a> store an already <a href="/wiki/Parse" class="mw-redirect" title="Parse">parsed</a> version of the code as an extended attribute, to allow faster execution. </p> <div class="mw-heading mw-heading3"><h3 id="Solaris">Solaris</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=9" title="Edit section: Solaris"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Solaris_(operating_system)" class="mw-redirect" title="Solaris (operating system)">Solaris</a> version 9 and later allows files to have "extended attributes", which are actually <a href="/wiki/Fork_(file_system)" title="Fork (file system)">forks</a>; the maximum size of an "extended attribute" is the same as the maximum size of a file, and they are read and written in the same fashion as files. Internally, they are actually stored and accessed like normal files, so their names cannot contain "/" characters<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> and their ownership and permissions can differ from those of the parent file. </p><p>Version 4 of the <a href="/wiki/Network_File_System" title="Network File System">Network File System</a> supports extended attributes in much the same way as Solaris. </p> <div class="mw-heading mw-heading3"><h3 id="Windows_NT">Windows NT</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=10" title="Edit section: Windows NT"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On <a href="/wiki/Windows_NT" title="Windows NT">Windows NT</a>, limited-length extended attributes are supported by <a href="/wiki/File_Allocation_Table" title="File Allocation Table">FAT</a>,<sup id="cite_ref-os2-fat-extended-attributes_25-1" class="reference"><a href="#cite_note-os2-fat-extended-attributes-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> <a href="/wiki/High_Performance_File_System" title="High Performance File System">HPFS</a>, and <a href="/wiki/NTFS" title="NTFS">NTFS</a>. This was implemented as part of the <a href="/wiki/OS/2_subsystem" class="mw-redirect" title="OS/2 subsystem">OS/2 subsystem</a>. They are notably used by the <a href="/wiki/Network_File_System_(protocol)" class="mw-redirect" title="Network File System (protocol)">NFS</a> server of the <a href="/wiki/Interix" title="Interix">Interix</a> POSIX subsystem in order to implement Unix-like permissions. The <a href="/wiki/Windows_Subsystem_for_Linux" title="Windows Subsystem for Linux">Windows Subsystem for Linux</a> added in the <a href="/wiki/Windows_10#Redstone" title="Windows 10">Windows 10 Anniversary Update</a> uses them for similar purposes, storing the Linux file mode, owner, device ID (if applicable), and file times in the extended attributes.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>Additionally, <a href="/wiki/NTFS" title="NTFS">NTFS</a> can store arbitrary-length extended attributes in the form of <a href="/wiki/NTFS#Alternate_data_stream_(ADS)" title="NTFS">alternate data streams</a> (ADS), a type of <a href="/wiki/Fork_(file_system)" title="Fork (file system)">resource fork</a>. Plugins for the file manager <a href="/wiki/Total_Commander" title="Total Commander">Total Commander</a>, like <i>NTFS Descriptions</i> and <i>QuickSearch eXtended</i> support filtering the file list by or searching for metadata contained in ADS.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> <a href="/wiki/NTFS-3G" title="NTFS-3G">NTFS-3G</a> supports mapping ADS to extended attributes in <a href="/wiki/Filesystem_in_Userspace" title="Filesystem in Userspace">FUSE</a>; it also maps file attributes that way.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=11" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Attribute%E2%80%93value_pair" class="mw-redirect" title="Attribute–value pair">Attribute–value pair</a></li> <li><a href="/wiki/File_attribute" title="File attribute">File attribute</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Extended_file_attributes&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://manned.org/xattr.7">xattr(7)</a></code></span> – <a href="/wiki/Linux" title="Linux">Linux</a> Programmer's <a href="/wiki/Man_page" title="Man page">Manual</a> – Overview, Conventions and Miscellanea</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.cmds2/getea.htm">"getea Command"</a>. <i>IBM <a href="/wiki/AIX" class="mw-redirect" title="AIX">AIX</a> V7.2 documentation</i>. <a href="/wiki/IBM" title="IBM">IBM</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+AIX+V7.2+documentation&rft.atitle=getea+Command&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2Fssw_aix_72%2Fcom.ibm.aix.cmds2%2Fgetea.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.basetrf1/getea.htm">"getea Subroutine"</a>. <i>IBM AIX V7.2 documentation: Base Operating System and Extensions, Volume 1</i>. IBM<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+AIX+V7.2+documentation%3A+Base+Operating+System+and+Extensions%2C+Volume+1&rft.atitle=getea+Subroutine&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2Fssw_aix_72%2Fcom.ibm.aix.basetrf1%2Fgetea.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.basetrf2/setea.htm">"setea Subroutine"</a>. <i>IBM AIX V7.2 documentation: Base Operating System and Extensions, Volume 2</i>. IBM<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+AIX+V7.2+documentation%3A+Base+Operating+System+and+Extensions%2C+Volume+2&rft.atitle=setea+Subroutine&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2Fssw_aix_72%2Fcom.ibm.aix.basetrf2%2Fsetea.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.basetrf1/listea.htm">"listea Subroutine"</a>. <i>IBM AIX V7.2 documentation: Base Operating System and Extensions, Volume 1</i>. IBM<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+AIX+V7.2+documentation%3A+Base+Operating+System+and+Extensions%2C+Volume+1&rft.atitle=listea+Subroutine&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2Fssw_aix_72%2Fcom.ibm.aix.basetrf1%2Flistea.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.basetrf2/statea.htm">"statea Subroutine"</a>. <i>IBM AIX V7.2 documentation: Base Operating System and Extensions, Volume 2</i>. IBM<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+AIX+V7.2+documentation%3A+Base+Operating+System+and+Extensions%2C+Volume+2&rft.atitle=statea+Subroutine&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2Fssw_aix_72%2Fcom.ibm.aix.basetrf2%2Fstatea.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.basetrf2/removeea.htm">"removeea Subroutine"</a>. <i>IBM AIX V7.2 documentation: Base Operating System and Extensions, Volume 2</i>. IBM<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+AIX+V7.2+documentation%3A+Base+Operating+System+and+Extensions%2C+Volume+2&rft.atitle=removeea+Subroutine&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2Fssw_aix_72%2Fcom.ibm.aix.basetrf2%2Fremoveea.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.haiku-os.org/docs/userguide/en/attributes.html">"Attributes"</a>. <i>Haiku User Guide</i>. Haiku, Inc<span class="reference-accessdate">. Retrieved <span class="nowrap">28 January</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Haiku+User+Guide&rft.atitle=Attributes&rft_id=https%3A%2F%2Fwww.haiku-os.org%2Fdocs%2Fuserguide%2Fen%2Fattributes.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.haiku-os.org/docs/userguide/en/workshop-email.html">"Workshop: Managing Emails"</a>. <i>Haiku User Guide</i>. Haiku, Inc<span class="reference-accessdate">. Retrieved <span class="nowrap">28 January</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Haiku+User+Guide&rft.atitle=Workshop%3A+Managing+Emails&rft_id=https%3A%2F%2Fwww.haiku-os.org%2Fdocs%2Fuserguide%2Fen%2Fworkshop-email.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://www.freebsd.org/cgi/man.cgi?query=extattr&sektion=2">extattr(2)</a></code></span> – <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a> System Calls <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKim2012" class="citation web cs1">Kim, Jaegeuk (2012-10-05). <a rel="nofollow" class="external text" href="http://lkml.iu.edu/hypermail/linux/kernel/1210.0/03190.html">"[PATCH 13/16] f2fs: add xattr and acl functionalities"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%5BPATCH+13%2F16%5D+f2fs%3A+add+xattr+and+acl+functionalities&rft.date=2012-10-05&rft.aulast=Kim&rft.aufirst=Jaegeuk&rft_id=http%3A%2F%2Flkml.iu.edu%2Fhypermail%2Flinux%2Fkernel%2F1210.0%2F03190.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSchaufler2002" class="citation newsgroup cs1">Schaufler, Casey (2002-04-30). <a rel="nofollow" class="external text" href="https://groups.google.com/g/comp.security.unix/c/gfyLMetqubs/m/hipaUcdWosAJ">"Posix.1e?"</a>. <a href="/wiki/Usenet_newsgroup" title="Usenet newsgroup">Newsgroup</a>: <a rel="nofollow" class="external text" href="news:comp.security.unix">comp.security.unix</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Posix.1e%3F&rft.pub=comp.security.unix&rft.date=2002-04-30&rft.aulast=Schaufler&rft.aufirst=Casey&rft_id=https%3A%2F%2Fgroups.google.com%2Fg%2Fcomp.security.unix%2Fc%2FgfyLMetqubs%2Fm%2FhipaUcdWosAJ&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/include/?id=1ea864f1c53bc771294e61cf9be43b1d22e78f4c">"v2.5.3 git commit log"</a>. 2002-02-05<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=v2.5.3+git+commit+log&rft.date=2002-02-05&rft_id=https%3A%2F%2Fgit.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftglx%2Fhistory.git%2Fcommit%2Finclude%2F%3Fid%3D1ea864f1c53bc771294e61cf9be43b1d22e78f4c&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170709142229/https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/3/html/Release_Notes/as-x86/index.html">"Red Hat Enterprise Linux AS 3 Release Notes (x86 Edition)"</a>. <a href="/wiki/Red_Hat" title="Red Hat">Red Hat</a>. 2003. Archived from <a rel="nofollow" class="external text" href="https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/3/html/Release_Notes/as-x86/index.html">the original</a> on 2017-07-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>. <q>EA (Extended Attributes) and ACL (Access Control Lists) functionality is now available for ext3 file systems. In addition, ACL functionality is available for NFS.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Red+Hat+Enterprise+Linux+AS+3+Release+Notes+%28x86+Edition%29&rft.pub=Red+Hat&rft.date=2003&rft_id=https%3A%2F%2Faccess.redhat.com%2Fdocumentation%2Fen-US%2FRed_Hat_Enterprise_Linux%2F3%2Fhtml%2FRelease_Notes%2Fas-x86%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/limits.h?id=607ca46e97a1b6594b29647d98a32d545c24bdff#n15">"linux/include/uapi/linux/limits.h"</a>. 2012-10-13<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=linux%2Finclude%2Fuapi%2Flinux%2Flimits.h&rft.date=2012-10-13&rft_id=https%3A%2F%2Fgit.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%2Ftree%2Finclude%2Fuapi%2Flinux%2Flimits.h%3Fid%3D607ca46e97a1b6594b29647d98a32d545c24bdff%23n15&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://manned.org/xattr.7">xattr(7)</a></code></span> – <a href="/wiki/Linux" title="Linux">Linux</a> Programmer's <a href="/wiki/Man_page" title="Man page">Manual</a> – Overview, Conventions and Miscellanea</span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://savannah.nongnu.org/projects/attr/">"Commands for Manipulating Filesystem Extended Attributes"</a>. <i><a href="/wiki/GNU_Savannah" title="GNU Savannah">GNU Savannah</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GNU+Savannah&rft.atitle=Commands+for+Manipulating+Filesystem+Extended+Attributes&rft_id=https%3A%2F%2Fsavannah.nongnu.org%2Fprojects%2Fattr%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/listxattr.2.html">listxattr(2)</a></code></span> – <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="/wiki/MacOS" title="MacOS">macOS</a> System Calls <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/getxattr.2.html">getxattr(2)</a></code></span> – <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="/wiki/MacOS" title="MacOS">macOS</a> System Calls <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-20">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/setxattr.2.html">setxattr(2)</a></code></span> – <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="/wiki/MacOS" title="MacOS">macOS</a> System Calls <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/removexattr.2.html">removexattr(2)</a></code></span> – <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="/wiki/MacOS" title="MacOS">macOS</a> System Calls <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-22">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/xattr.1.html">xattr(1)</a></code></span> – <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="/wiki/MacOS" title="MacOS">macOS</a> General Commands <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-23">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://developer.apple.com/library/archive/releasenotes/Carbon/RN-LaunchServices/index.html">"Launch Services Release Notes"</a>. <i>developer.apple.com</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=developer.apple.com&rft.atitle=Launch+Services+Release+Notes&rft_id=https%3A%2F%2Fdeveloper.apple.com%2Flibrary%2Farchive%2Freleasenotes%2FCarbon%2FRN-LaunchServices%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDale_Rahn2005" class="citation web cs1">Dale Rahn (2005-07-03). <a rel="nofollow" class="external text" href="https://cvsweb.openbsd.org/src/sys/ufs/ufs/Attic/extattr.h">"CVS log for src/sys/ufs/ufs/Attic/extattr.h"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=CVS+log+for+src%2Fsys%2Fufs%2Fufs%2FAttic%2Fextattr.h&rft.date=2005-07-03&rft.au=Dale+Rahn&rft_id=https%3A%2F%2Fcvsweb.openbsd.org%2Fsrc%2Fsys%2Fufs%2Fufs%2FAttic%2Fextattr.h&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-os2-fat-extended-attributes-25"><span class="mw-cite-backlink">^ <a href="#cite_ref-os2-fat-extended-attributes_25-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-os2-fat-extended-attributes_25-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEager2000" class="citation web cs1">Eager, Bob (2000-10-28). <a rel="nofollow" class="external text" href="http://www.tavi.co.uk/os2pages/eadata.html">"Implementation of extended attributes on the FAT file system"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Implementation+of+extended+attributes+on+the+FAT+file+system&rft.date=2000-10-28&rft.aulast=Eager&rft.aufirst=Bob&rft_id=http%3A%2F%2Fwww.tavi.co.uk%2Fos2pages%2Feadata.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-26">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://docs.oracle.com/cd/E88353_01/html/E37853/fsattr-7.html">fsattr(7)</a></code></span> – <a href="/wiki/Solaris_(operating_system)" class="mw-redirect" title="Solaris (operating system)">Solaris 11.4</a> Standards, Environments, Macros, Character Sets, and Miscellany Reference <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-27">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHammons2016" class="citation web cs1">Hammons, Jack (2016-06-15). <a rel="nofollow" class="external text" href="https://blogs.msdn.microsoft.com/wsl/2016/06/15/wsl-file-system-support/">"WSL File System Support"</a>. <a href="/wiki/MSDN" class="mw-redirect" title="MSDN">MSDN</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2017-07-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=WSL+File+System+Support&rft.pub=MSDN&rft.date=2016-06-15&rft.aulast=Hammons&rft.aufirst=Jack&rft_id=https%3A%2F%2Fblogs.msdn.microsoft.com%2Fwsl%2F2016%2F06%2F15%2Fwsl-file-system-support%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://totalcmd.net/plugring/NTFS_diz.html">"NTFS Descriptions 1.2.1"</a>. <i>TotalCmd.net</i><span class="reference-accessdate">. Retrieved <span class="nowrap">16 April</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=TotalCmd.net&rft.atitle=NTFS+Descriptions+1.2.1&rft_id=https%3A%2F%2Ftotalcmd.net%2Fplugring%2FNTFS_diz.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://totalcmd.net/plugring/google_like_qs.html">"QuickSearch eXtended"</a>. <i>TotalCmd.net</i><span class="reference-accessdate">. Retrieved <span class="nowrap">16 April</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=TotalCmd.net&rft.atitle=QuickSearch+eXtended&rft_id=http%3A%2F%2Ftotalcmd.net%2Fplugring%2Fgoogle_like_qs.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20200814021136/https://www.tuxera.com/community/ntfs-3g-advanced/extended-attributes/">"Extended Attributes"</a>. <i>Tuxera</i>. Archived from <a rel="nofollow" class="external text" href="https://www.tuxera.com/community/ntfs-3g-advanced/extended-attributes/">the original</a> on 2020-08-14.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Tuxera&rft.atitle=Extended+Attributes&rft_id=https%3A%2F%2Fwww.tuxera.com%2Fcommunity%2Fntfs-3g-advanced%2Fextended-attributes%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AExtended+file+attributes" class="Z3988"></span></span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Computer_files" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Computer_files" title="Template:Computer files"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Computer_files" title="Template talk:Computer files"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Computer_files" title="Special:EditPage/Template:Computer files"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Computer_files" style="font-size:114%;margin:0 4em"><a href="/wiki/Computer_file" title="Computer file">Computer files</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Binary_file" title="Binary file">Binary file</a> / <a href="/wiki/Text_file" title="Text file">text file</a></li> <li><a href="/wiki/Data_file" title="Data file">Data file</a></li> <li><a href="/wiki/File_format" title="File format">File format</a> <ul><li><a href="/wiki/List_of_file_formats" title="List of file formats">List of file formats</a></li> <li><a href="/wiki/List_of_file_signatures" title="List of file signatures">File signatures</a></li> <li><a href="/wiki/Magic_number_(programming)" title="Magic number (programming)">Magic number</a></li> <li><a href="/wiki/Open_file_format" title="Open file format">Open file formats</a></li> <li><a href="/wiki/Proprietary_file_format" title="Proprietary file format">Proprietary file formats</a></li></ul></li> <li><a href="/wiki/Metafile" class="mw-redirect" title="Metafile">Metafile</a></li> <li><a href="/wiki/Sidecar_file" title="Sidecar file">Sidecar file</a></li> <li><a href="/wiki/Sparse_file" title="Sparse file">Sparse file</a></li> <li><a href="/wiki/Swap_file" class="mw-redirect" title="Swap file">Swap file</a></li> <li><a href="/wiki/System_file" title="System file">System file</a></li> <li><a href="/wiki/Temporary_file" title="Temporary file">Temporary file</a></li> <li><a href="/wiki/Zero-byte_file" title="Zero-byte file">Zero-byte file</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Properties</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Filename" title="Filename">Filename</a> <ul><li><a href="/wiki/8.3_filename" title="8.3 filename">8.3 filename</a></li> <li><a href="/wiki/Long_filename" title="Long filename">Long filename</a></li> <li><a href="/wiki/Filename_mangling" title="Filename mangling">Filename mangling</a></li></ul></li> <li><a href="/wiki/Filename_extension" title="Filename extension">Filename extension</a> <ul><li><a href="/wiki/List_of_filename_extensions" title="List of filename extensions">List of filename extensions</a></li></ul></li> <li><a href="/wiki/File_attribute" title="File attribute">File attribute</a> <ul><li><a class="mw-selflink selflink">Extended file attributes</a></li></ul></li> <li><a href="/wiki/File_size" title="File size">File size</a></li> <li><a href="/wiki/Hidden_file_and_hidden_directory" title="Hidden file and hidden directory">Hidden file / Hidden directory</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organisation</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Directory_(computing)" title="Directory (computing)">Directory/folder</a> <ul><li><a href="/wiki/NTFS_links" title="NTFS links">NTFS links</a></li> <li><a href="/wiki/Temporary_folder" title="Temporary folder">Temporary folder</a></li></ul></li> <li><a href="/wiki/Directory_structure" title="Directory structure">Directory structure</a></li> <li><a href="/wiki/File_system" title="File system">File system</a> <ul><li><a href="/wiki/Filesystem_Hierarchy_Standard" title="Filesystem Hierarchy Standard">Filesystem Hierarchy Standard</a></li> <li><a href="/wiki/Grid_file_system" title="Grid file system">Grid file system</a></li> <li><a href="/wiki/Semantic_file_system" title="Semantic file system">Semantic file system</a></li></ul></li> <li><a href="/wiki/Path_(computing)" title="Path (computing)">Path</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/File_operation" class="mw-redirect" title="File operation">Operations</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Open_(system_call)" title="Open (system call)">Open</a></li> <li><a href="/wiki/Close_(system_call)" title="Close (system call)">Close</a></li> <li><a href="/wiki/Read_(system_call)" title="Read (system call)">Read</a></li> <li><a href="/wiki/Write_(system_call)" title="Write (system call)">Write</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Linking</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/File_descriptor" title="File descriptor">File descriptor</a></li> <li><a href="/wiki/Hard_link" title="Hard link">Hard link</a></li> <li><a href="/wiki/Shortcut_(computing)" title="Shortcut (computing)">Shortcut</a> <ul><li><a href="/wiki/Alias_(Mac_OS)" title="Alias (Mac OS)">Alias</a></li> <li><a href="/wiki/Shadow_(OS/2)" title="Shadow (OS/2)">Shadow</a></li></ul></li> <li><a href="/wiki/Symbolic_link" title="Symbolic link">Symbolic link</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Management</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Backup" title="Backup">Backup</a></li> <li><a href="/wiki/File_comparison" title="File comparison">File comparison</a></li> <li><a href="/wiki/File_copying" title="File copying">File copying</a></li> <li><a href="/wiki/Data_compression" title="Data compression">Data compression</a></li> <li><a href="/wiki/File_manager" title="File manager">File manager</a> <ul><li><a href="/wiki/Comparison_of_file_managers" title="Comparison of file managers">Comparison of file managers</a></li></ul></li> <li><a href="/wiki/File_system_fragmentation" title="File system fragmentation">File system fragmentation</a></li> <li><a href="/wiki/File-system_permissions" title="File-system permissions">File-system permissions</a></li> <li><a href="/wiki/File_transfer" title="File transfer">File transfer</a> <ul><li><a href="/wiki/File_sharing" title="File sharing">File sharing</a></li> <li><a href="/wiki/File_synchronization" title="File synchronization">File synchronization</a></li></ul></li> <li><a href="/wiki/File_verification" title="File verification">File verification</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Extended_file_attributes&oldid=1209460921">https://en.wikipedia.org/w/index.php?title=Extended_file_attributes&oldid=1209460921</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Computer_file_systems" title="Category:Computer file systems">Computer file systems</a></li><li><a href="/wiki/Category:Metadata" title="Category:Metadata">Metadata</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_matches_Wikidata" title="Category:Short description matches Wikidata">Short description matches Wikidata</a></li><li><a href="/wiki/Category:All_articles_with_unsourced_statements" title="Category:All articles with unsourced statements">All articles with unsourced statements</a></li><li><a href="/wiki/Category:Articles_with_unsourced_statements_from_July_2020" title="Category:Articles with unsourced statements from July 2020">Articles with unsourced statements from July 2020</a></li><li><a href="/wiki/Category:Articles_with_unsourced_statements_from_September_2012" title="Category:Articles with unsourced statements from September 2012">Articles with unsourced statements from September 2012</a></li><li><a href="/wiki/Category:Articles_with_unsourced_statements_from_October_2012" title="Category:Articles with unsourced statements from October 2012">Articles with unsourced statements from October 2012</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 22 February 2024, at 01:05<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. By using this site, you agree to the <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use" class="extiw" title="foundation:Special:MyLanguage/Policy:Terms of Use">Terms of Use</a> and <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy" class="extiw" title="foundation:Special:MyLanguage/Policy:Privacy policy">Privacy Policy</a>. Wikipedia® is a registered trademark of the <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, a non-profit organization.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=Extended_file_attributes&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-74cc59cb9d-nb7sw","wgBackendResponseTime":182,"wgPageParseReport":{"limitreport":{"cputime":"0.488","walltime":"0.633","ppvisitednodes":{"value":3117,"limit":1000000},"postexpandincludesize":{"value":61787,"limit":2097152},"templateargumentsize":{"value":6036,"limit":2097152},"expansiondepth":{"value":14,"limit":100},"expensivefunctioncount":{"value":7,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":85447,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 555.352 1 -total"," 39.42% 218.904 1 Template:Reflist"," 27.53% 152.894 20 Template:Cite_web"," 19.54% 108.542 1 Template:Computer_files"," 18.82% 104.490 1 Template:Navbox"," 12.25% 68.049 1 Template:Short_description"," 11.12% 61.756 3 Template:Code"," 9.87% 54.802 4 Template:Fix"," 7.75% 43.014 2 Template:Cn"," 7.00% 38.849 2 Template:Pagetype"]},"scribunto":{"limitreport-timeusage":{"value":"0.278","limit":"10.000"},"limitreport-memusage":{"value":5624504,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-cc877b49b-gsptz","timestamp":"20241127122001","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Extended file attributes","url":"https:\/\/en.wikipedia.org\/wiki\/Extended_file_attributes","sameAs":"http:\/\/www.wikidata.org\/entity\/Q2085509","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q2085509","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2005-12-18T18:57:25Z","dateModified":"2024-02-22T01:05:13Z","headline":"Set of file system features"}</script> </body> </html>