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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">head (Unix)</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 19 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-19" 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">19 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Belarusian" lang="be" hreflang="be" data-title="Head (Unix)" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Head" title="Head – Czech" lang="cs" hreflang="cs" data-title="Head" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – German" lang="de" hreflang="de" data-title="Head (Unix)" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Greek" lang="el" hreflang="el" data-title="Head (Unix)" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Spanish" lang="es" hreflang="es" data-title="Head (Unix)" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – French" lang="fr" hreflang="fr" data-title="Head (Unix)" 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/Head_(%EC%9C%A0%EB%8B%89%EC%8A%A4)" title="Head (유닉스) – Korean" lang="ko" hreflang="ko" data-title="Head (유닉스)" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B9%E0%A5%87%E0%A4%A1_(%E0%A4%AF%E0%A5%82%E0%A4%A8%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B8)" title="हेड (यूनिक्स) – Hindi" lang="hi" hreflang="hi" data-title="हेड (यूनिक्स)" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Italian" lang="it" hreflang="it" data-title="Head (Unix)" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/Head_(%D7%99%D7%95%D7%A0%D7%99%D7%A7%D7%A1)" title="Head (יוניקס) – Hebrew" lang="he" hreflang="he" data-title="Head (יוניקס)" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Hungarian" lang="hu" hreflang="hu" data-title="Head (Unix)" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B9%E0%A5%87%E0%A4%A1_(%E0%A4%AF%E0%A5%81%E0%A4%A8%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B8)" title="हेड (युनिक्स) – Marathi" lang="mr" hreflang="mr" data-title="हेड (युनिक्स)" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Head" title="Head – Japanese" lang="ja" hreflang="ja" data-title="Head" 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-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Polish" lang="pl" hreflang="pl" data-title="Head (Unix)" 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/Head_(Unix)" title="Head (Unix) – Portuguese" lang="pt" hreflang="pt" data-title="Head (Unix)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Romanian" lang="ro" hreflang="ro" data-title="Head (Unix)" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Russian" lang="ru" hreflang="ru" data-title="Head (Unix)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Head_(Unix)" title="Head (Unix) – Turkish" lang="tr" hreflang="tr" data-title="Head (Unix)" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Head" title="Head – Ukrainian" lang="uk" hreflang="uk" data-title="Head" data-language-autonym="Українська" data-language-local-name="Ukrainian" 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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output 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src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Head_(Unix)" title="Special:EditPage/Head (Unix)">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Head%22+Unix">"Head" Unix</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Head%22+Unix+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Head%22+Unix&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Head%22+Unix+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Head%22+Unix">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Head%22+Unix&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">June 2020</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Program on Unix and Unix-like systems</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">head</caption><tbody><tr><td colspan="2" class="infobox-image logo"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Head-example-command.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Head-example-command.gif/220px-Head-example-command.gif" decoding="async" width="220" height="129" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Head-example-command.gif/330px-Head-example-command.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Head-example-command.gif/440px-Head-example-command.gif 2x" data-file-width="1040" data-file-height="608" /></a></span><div class="infobox-caption">Example usage of <code>head</code> command to display first 5 lines of <a href="/wiki/Lorem_ipsum" title="Lorem ipsum">Lorem ipsum</a> in the specified file</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data">Various <a href="/wiki/Open-source_software" title="Open-source software">open-source</a> and <a href="/wiki/Commercial_software" title="Commercial software">commercial</a> developers</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="/wiki/Unix" title="Unix">Unix</a>, <a href="/wiki/Unix-like" title="Unix-like">Unix-like</a>, <a href="/wiki/MSX-DOS" title="MSX-DOS">MSX-DOS</a>, <a href="/wiki/IBM_i" title="IBM i">IBM i</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data"><a href="/wiki/Cross-platform" class="mw-redirect" title="Cross-platform">Cross-platform</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/Command_(computing)" title="Command (computing)">Command</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/Coreutils" class="mw-redirect" title="Coreutils">coreutils</a>: <a href="/wiki/GPLv3" class="mw-redirect" title="GPLv3">GPLv3</a></td></tr></tbody></table> <p><b>head</b> is a <a href="/wiki/Computer_program" title="Computer program">program</a> on <a href="/wiki/Unix" title="Unix">Unix</a> and <a href="/wiki/Unix-like" title="Unix-like">Unix-like</a> <a href="/wiki/Operating_system" title="Operating system">operating systems</a> used to display the beginning of a text <a href="/wiki/Computer_file" title="Computer file">file</a> or <a href="/wiki/Pipe_(computing)" class="mw-redirect" title="Pipe (computing)">piped</a> data. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Syntax">Syntax</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Head_(Unix)&action=edit&section=1" title="Edit section: Syntax"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The command <a href="/wiki/Syntax" title="Syntax">syntax</a> is: </p> <pre>head [options] <span class="nowrap">⟨file_name⟩</span> </pre> <p>By default, <style data-mw-deduplicate="TemplateStyles:r886049734">.mw-parser-output .monospaced{font-family:monospace,monospace}</style><span class="monospaced">head</span> will print the first 10 lines of its input to the <a href="/wiki/Standard_output" class="mw-redirect" title="Standard output">standard output</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Option_flags">Option flags</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Head_(Unix)&action=edit&section=2" title="Edit section: Option flags"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1228772891">.mw-parser-output .glossary dt{margin-top:0.4em}.mw-parser-output .glossary dt+dt{margin-top:-0.2em}.mw-parser-output .glossary .templatequote{margin-top:0;margin-bottom:-0.5em}</style> <dl class="glossary"> <dt id="-n"><dfn><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">-n</span> <span class="nowrap">⟨count⟩</span></dfn></dt> <dt id="--lines"><dfn><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">--lines</span>=<span class="nowrap">⟨count⟩</span></dfn></dt> <dd>The number of lines printed may be changed with a <a href="/wiki/Command_line" class="mw-redirect" title="Command line">command line</a> option. The following example shows the first 20 lines of <i>filename</i>: <style data-mw-deduplicate="TemplateStyles:r1195917819">.mw-parser-output .pre-borderless{border:none}</style><pre class="pre">head -n 20 <i>filename</i></pre> <p>This displays the first 5 lines of all files starting with <i>foo</i>: </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1195917819"><pre class="pre">head -n 5 <i>foo*</i></pre> Most versions<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. (June 2020)">citation needed</span></a></i>]</sup> allow omitting <code>n</code> and instead directly specifying the number: <code>-5</code>. <a href="/wiki/GNU" title="GNU">GNU</a> head allows negative arguments for the <code>-n</code> option, meaning to print all but the last - argument value counted - lines of each input file.</dd> <dt id="-c"><dfn><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">-c</span> <span class="nowrap">⟨bytes⟩</span></dfn></dt> <dt id="--bytes"><dfn><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">--bytes</span>=<span class="nowrap">⟨bytes⟩</span></dfn></dt> <dd>Print first x number of bytes.</dd> </dl> <div class="mw-heading mw-heading2"><h2 id="Other_command">Other command</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Head_(Unix)&action=edit&section=3" title="Edit section: Other command"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Many early versions of Unix and Plan 9 did not have this command, and documentation and books used <a href="/wiki/Sed" title="Sed">sed</a> instead: </p> <pre>sed 5q <i>filename</i> </pre> <p>The example prints every line (implicit) and quits after the fifth. </p><p>Equivalently, <a href="/wiki/Awk" class="mw-redirect" title="Awk">awk</a> may be used to print the first five lines in a file: </p> <pre>awk 'NR < 6' <i>filename</i> </pre> <p>However, neither sed nor awk were available in early versions of <a href="/wiki/BSD" class="mw-redirect" title="BSD">BSD</a>, which were based on <a href="/wiki/Version_6_Unix" title="Version 6 Unix">Version 6 Unix</a>, and included head.<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> <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=Head_(Unix)&action=edit&section=4" title="Edit section: Implementations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A <code>head</code> command is also part of <a href="/wiki/ASCII_Corporation" title="ASCII Corporation">ASCII</a>'s <i>MSX-DOS2 Tools</i> for <a href="/wiki/MSX-DOS" title="MSX-DOS">MSX-DOS</a> version 2.<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">head</span> command has also been ported to the <a href="/wiki/IBM_i" title="IBM i">IBM i</a> operating system.<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> </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=Head_(Unix)&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Tail_(Unix)" title="Tail (Unix)">tail (Unix)</a></li> <li><a href="/wiki/Dd_(Unix)" title="Dd (Unix)">dd (Unix)</a></li> <li><a href="/wiki/List_of_Unix_commands" class="mw-redirect" title="List of Unix commands">List of Unix commands</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=Head_(Unix)&action=edit&section=6" 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"><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"><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 id="CITEREFSpinellis2022" class="citation journal cs1">Spinellis, Diomidis (2022). <a rel="nofollow" class="external text" href="https://dspinellis.github.io/unix-history-man/man1.html">"dspinellis/unix-history-man: Version 1.0 web pages (v1.1-web)"</a>. <i>Zenodo</i>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.5281%2Fzenodo.7248228">10.5281/zenodo.7248228</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Zenodo&rft.atitle=dspinellis%2Funix-history-man%3A+Version+1.0+web+pages+%28v1.1-web%29&rft.date=2022&rft_id=info%3Adoi%2F10.5281%2Fzenodo.7248228&rft.aulast=Spinellis&rft.aufirst=Diomidis&rft_id=https%3A%2F%2Fdspinellis.github.io%2Funix-history-man%2Fman1.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHead+%28Unix%29" class="Z3988"></span></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"><a rel="nofollow" class="external text" href="https://archive.org/details/MSXDOS2TOOLS">MSX-DOS2 Tools User's Manual by ASCII Corporation</a></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 id="CITEREFIBM" class="citation web cs1"><a href="/wiki/IBM" title="IBM">IBM</a>. <a rel="nofollow" class="external text" href="https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_74/rzahz/rzahzpdf.pdf?view=kc">"IBM System i Version 7.2 Programming Qshell"</a> <span class="cs1-format">(PDF)</span><span class="reference-accessdate">. Retrieved <span class="nowrap">2020-09-05</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=IBM+System+i+Version+7.2+Programming+Qshell&rft.au=IBM&rft_id=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fssw_ibm_i_74%2Frzahz%2Frzahzpdf.pdf%3Fview%3Dkc&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHead+%28Unix%29" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Head_(Unix)&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikibooks-logo-en-noslogan.svg/40px-Wikibooks-logo-en-noslogan.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikibooks-logo-en-noslogan.svg/60px-Wikibooks-logo-en-noslogan.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikibooks-logo-en-noslogan.svg/80px-Wikibooks-logo-en-noslogan.svg.png 2x" data-file-width="400" data-file-height="400" /></span></span></div> <div class="side-box-text plainlist">The Wikibook <i><a href="https://en.wikibooks.org/wiki/Guide_to_Unix" class="extiw" title="wikibooks:Guide to Unix">Guide to Unix</a></i> has a page on the topic of: <i><b><a href="https://en.wikibooks.org/wiki/Guide_to_Unix/Commands" class="extiw" title="wikibooks:Guide to Unix/Commands">Commands</a></b></i></div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://www.gnu.org/software/coreutils/manual/html_node/head-invocation.html">head</a> manual page from <a href="/wiki/GNU" title="GNU">GNU</a> <a href="/wiki/Coreutils" class="mw-redirect" title="Coreutils">coreutils</a>.</li> <li><a rel="nofollow" class="external text" href="http://www.freebsd.org/cgi/man.cgi?query=head&apropos=0&sektion=0&manpath=FreeBSD+5.3-RELEASE+and+Ports&format=html">FreeBSD documentation for head</a></li></ul> <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:": 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class="nowraplinks 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 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title="Edit this template">e</abbr></a></li></ul></div><div id="Unix_command-line_interface_programs_and_shell_builtins" style="font-size:114%;margin:0 4em"><a href="/wiki/Unix" title="Unix">Unix</a> <a href="/wiki/Command-line_interface" title="Command-line interface">command-line interface</a> programs and <a href="/wiki/Shell_builtin" title="Shell builtin">shell builtins</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">File system</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cat_(Unix)" title="Cat (Unix)">cat</a></li> <li><a href="/wiki/Chattr" title="Chattr">chattr</a></li> <li><a href="/wiki/Chmod" title="Chmod">chmod</a></li> <li><a href="/wiki/Chown" title="Chown">chown</a></li> <li><a href="/wiki/Chgrp" title="Chgrp">chgrp</a></li> <li><a href="/wiki/Cksum" title="Cksum">cksum</a></li> <li><a href="/wiki/Cmp_(Unix)" title="Cmp (Unix)">cmp</a></li> <li><a href="/wiki/Cp_(Unix)" title="Cp (Unix)">cp</a></li> <li><a href="/wiki/Dd_(Unix)" title="Dd (Unix)">dd</a></li> <li><a href="/wiki/Du_(Unix)" title="Du (Unix)">du</a></li> <li><a href="/wiki/Df_(Unix)" title="Df (Unix)">df</a></li> <li><a href="/wiki/File_(command)" title="File (command)">file</a></li> <li><a href="/wiki/Fuser_(Unix)" title="Fuser (Unix)">fuser</a></li> <li><a href="/wiki/Ln_(Unix)" title="Ln (Unix)">ln</a></li> <li><a href="/wiki/Ls" title="Ls">ls</a></li> <li><a href="/wiki/Mkdir" title="Mkdir">mkdir</a></li> <li><a href="/wiki/Mv_(Unix)" title="Mv (Unix)">mv</a></li> <li><a href="/wiki/Pax_(command)" title="Pax (command)">pax</a></li> <li><a href="/wiki/Pwd" title="Pwd">pwd</a></li> <li><a href="/wiki/Rm_(Unix)" title="Rm (Unix)">rm</a></li> <li><a href="/wiki/Rmdir" title="Rmdir">rmdir</a></li> <li><a href="/wiki/Split_(Unix)" title="Split (Unix)">split</a></li> <li><a href="/wiki/Tee_(command)" title="Tee (command)">tee</a></li> <li><a href="/wiki/Touch_(command)" title="Touch (command)">touch</a></li> <li><a href="/wiki/Type_(Unix)" title="Type (Unix)">type</a></li> <li><a href="/wiki/Umask" title="Umask">umask</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Processes</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/At_(command)" title="At (command)">at</a></li> <li><a href="/wiki/Job_control_(Unix)#Commands" title="Job control (Unix)">bg</a></li> <li><a href="/wiki/Cron" title="Cron">crontab</a></li> <li><a href="/wiki/Job_control_(Unix)#Commands" title="Job control (Unix)">fg</a></li> <li><a href="/wiki/Kill_(command)" title="Kill (command)">kill</a></li> <li><a href="/wiki/Nice_(Unix)" title="Nice (Unix)">nice</a></li> <li><a href="/wiki/Ps_(Unix)" title="Ps (Unix)">ps</a></li> <li><a href="/wiki/Time_(Unix)" title="Time (Unix)">time</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">User environment</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Env" title="Env">env</a></li> <li><a href="/wiki/Exit_(command)" title="Exit (command)">exit</a></li> <li><a href="/wiki/Logname" title="Logname">logname</a></li> <li><a href="/wiki/Mesg" title="Mesg">mesg</a></li> <li><a href="/wiki/Talk_(software)" title="Talk (software)">talk</a></li> <li><a href="/wiki/Tput" title="Tput">tput</a></li> <li><a href="/wiki/Uname" title="Uname">uname</a></li> <li><a href="/wiki/Who_(Unix)" title="Who (Unix)">who</a></li> <li><a href="/wiki/Write_(Unix)" title="Write (Unix)">write</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Text processing</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AWK" title="AWK">awk</a></li> <li><a href="/wiki/Basename" title="Basename">basename</a></li> <li><a href="/wiki/Comm" title="Comm">comm</a></li> <li><a href="/wiki/Csplit" title="Csplit">csplit</a></li> <li><a href="/wiki/Cut_(Unix)" title="Cut (Unix)">cut</a></li> <li><a href="/wiki/Diff" title="Diff">diff</a></li> <li><a href="/wiki/Dirname" title="Dirname">dirname</a></li> <li><a href="/wiki/Ed_(text_editor)" class="mw-redirect" title="Ed (text editor)">ed</a></li> <li><a href="/wiki/Ex_(text_editor)" title="Ex (text editor)">ex</a></li> <li><a href="/wiki/Fold_(Unix)" title="Fold (Unix)">fold</a></li> <li><a class="mw-selflink selflink">head</a></li> <li><a href="/wiki/Iconv" title="Iconv">iconv</a></li> <li><a href="/wiki/Join_(Unix)" title="Join (Unix)">join</a></li> <li><a href="/wiki/M4_(computer_language)" title="M4 (computer language)">m4</a></li> <li><a href="/wiki/More_(command)" title="More (command)">more</a></li> <li><a href="/wiki/Nl_(Unix)" title="Nl (Unix)">nl</a></li> <li><a href="/wiki/Paste_(Unix)" title="Paste (Unix)">paste</a></li> <li><a href="/wiki/Patch_(Unix)" title="Patch (Unix)">patch</a></li> <li><a href="/wiki/Printf_(Unix)" title="Printf (Unix)">printf</a></li> <li><a href="/wiki/Read_(Unix)" title="Read (Unix)">read</a></li> <li><a href="/wiki/Sed" title="Sed">sed</a></li> <li><a href="/wiki/Sort_(Unix)" title="Sort (Unix)">sort</a></li> <li><a href="/wiki/Strings_(Unix)" title="Strings (Unix)">strings</a></li> <li><a href="/wiki/Tail_(Unix)" title="Tail (Unix)">tail</a></li> <li><a href="/wiki/Tr_(Unix)" title="Tr (Unix)">tr</a></li> <li><a href="/wiki/Troff" title="Troff">troff</a></li> <li><a href="/wiki/Uniq" title="Uniq">uniq</a></li> <li><a href="/wiki/Vi_(text_editor)" title="Vi (text editor)">vi</a></li> <li><a href="/wiki/Wc_(Unix)" title="Wc (Unix)">wc</a></li> <li><a href="/wiki/Xargs" title="Xargs">xargs</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Shell_builtin" title="Shell builtin">Shell builtins</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alias_(command)" title="Alias (command)">alias</a></li> <li><a href="/wiki/Cd_(command)" title="Cd (command)">cd</a></li> <li><a href="/wiki/Echo_(command)" title="Echo (command)">echo</a></li> <li><a href="/wiki/Test_(Unix)" title="Test (Unix)">test</a></li> <li><a href="/wiki/Environment_variable#unset_command" title="Environment variable">unset</a></li> <li><a href="/wiki/Wait_(command)" title="Wait (command)">wait</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Searching</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Find_(Unix)" title="Find (Unix)">find</a></li> <li><a href="/wiki/Grep" title="Grep">grep</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Documentation</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Man_page" title="Man page">man</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Software_development" title="Software development">Software development</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ar_(Unix)" title="Ar (Unix)">ar</a></li> <li><a href="/wiki/Ctags" title="Ctags">ctags</a></li> <li><a href="/wiki/Lex_(software)" title="Lex (software)">lex</a></li> <li><a href="/wiki/Make_(software)" title="Make (software)">make</a></li> <li><a href="/wiki/Nm_(Unix)" title="Nm (Unix)">nm</a></li> <li><a href="/wiki/Strip_(Unix)" title="Strip (Unix)">strip</a></li> <li><a href="/wiki/Yacc" title="Yacc">yacc</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Miscellaneous</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bc_(programming_language)" title="Bc (programming language)">bc</a></li> <li><a href="/wiki/Cal_(command)" title="Cal (command)">cal</a></li> <li><a href="/wiki/Expr" title="Expr">expr</a></li> <li><a href="/wiki/System_V_printing_system" title="System V printing system">lp</a></li> <li><a href="/wiki/Od_(Unix)" title="Od (Unix)">od</a></li> <li><a href="/wiki/Sleep_(command)" title="Sleep (command)">sleep</a></li> <li><a href="/wiki/True_and_false_(commands)" title="True and false (commands)">true and false</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow hlist" colspan="2"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b>Categories</b> <ul><li><a href="/wiki/Category:Standard_Unix_programs" title="Category:Standard Unix programs">Standard Unix programs</a></li> <li><a href="/wiki/Category:Unix_SUS2008_utilities" title="Category:Unix SUS2008 utilities">Unix SUS2008 utilities</a></li></ul></li> <li><span class="noviewer" typeof="mw:File"><span title="List-Class article"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/16px-Symbol_list_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/23px-Symbol_list_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/31px-Symbol_list_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b><a href="/wiki/List_of_POSIX_commands" title="List of POSIX commands">List</a></b></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="GNU_Core_Utilities_command-line_interface_programs" style="padding:3px"><table class="nowraplinks 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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Core_Utilities_commands" title="Template:Core Utilities commands"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Core_Utilities_commands" title="Template talk:Core Utilities commands"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Core_Utilities_commands" title="Special:EditPage/Template:Core Utilities commands"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="GNU_Core_Utilities_command-line_interface_programs" style="font-size:114%;margin:0 4em"><a href="/wiki/GNU_Core_Utilities" title="GNU Core Utilities">GNU Core Utilities</a> <a href="/wiki/Command-line_interface" title="Command-line interface">command-line interface</a> programs</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">File system</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Chcon&action=edit&redlink=1" class="new" title="Chcon (page does not exist)">chcon</a></li> <li><a href="/wiki/Chmod" title="Chmod">chmod</a></li> <li><a href="/wiki/Chown" title="Chown">chown</a></li> <li><a href="/wiki/Chgrp" title="Chgrp">chgrp</a></li> <li><a href="/wiki/Cksum" title="Cksum">cksum</a></li> <li><a href="/wiki/Cp_(Unix)" title="Cp (Unix)">cp</a></li> <li><a href="/wiki/Dd_(Unix)" title="Dd (Unix)">dd</a></li> <li><a href="/wiki/Df_(Unix)" title="Df (Unix)">df</a></li> <li><a href="/wiki/Ls" title="Ls">dir</a></li> <li><a href="/w/index.php?title=Dircolors_(Unix)&action=edit&redlink=1" class="new" title="Dircolors (Unix) (page does not exist)">dircolors</a></li> <li><a href="/wiki/Install_(Unix)" title="Install (Unix)">install</a></li> <li><a href="/wiki/Ln_(Unix)" title="Ln (Unix)">ln</a></li> <li><a href="/wiki/Ls" title="Ls">ls</a></li> <li><a href="/wiki/Mkdir" title="Mkdir">mkdir</a></li> <li><a href="/wiki/Mkfifo" class="mw-redirect" title="Mkfifo">mkfifo</a></li> <li><a href="/wiki/Mknod" class="mw-redirect" title="Mknod">mknod</a></li> <li><a href="/wiki/Mktemp" title="Mktemp">mktemp</a></li> <li><a href="/wiki/Mv_(Unix)" title="Mv (Unix)">mv</a></li> <li><a href="/w/index.php?title=Realpath&action=edit&redlink=1" class="new" title="Realpath (page does not exist)">realpath</a></li> <li><a href="/wiki/Rm_(Unix)" title="Rm (Unix)">rm</a></li> <li><a href="/wiki/Rmdir" title="Rmdir">rmdir</a></li> <li><a href="/wiki/Shred_(Unix)" title="Shred (Unix)">shred</a></li> <li><a href="/wiki/Sync_(Unix)" title="Sync (Unix)">sync</a></li> <li><a href="/wiki/Touch_(command)" title="Touch (command)">touch</a></li> <li><a href="/wiki/Truncate" class="mw-redirect" title="Truncate">truncate</a></li> <li><a href="/wiki/Ls" title="Ls">vdir</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Text utilities</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=B2sum&action=edit&redlink=1" class="new" title="B2sum (page does not exist)">b2sum</a></li> <li><a href="/wiki/Base32" title="Base32">base32</a></li> <li><a href="/wiki/Base64" title="Base64">base64</a></li> <li><a href="/wiki/Cat_(Unix)" title="Cat (Unix)">cat</a></li> <li><a href="/wiki/Cksum" title="Cksum">cksum</a></li> <li><a href="/wiki/Comm" title="Comm">comm</a></li> <li><a href="/wiki/Csplit" title="Csplit">csplit</a></li> <li><a href="/wiki/Cut_(Unix)" title="Cut (Unix)">cut</a></li> <li><a href="/wiki/Expand_(Unix)" title="Expand (Unix)">expand</a></li> <li><a href="/wiki/Fmt_(Unix)" title="Fmt (Unix)">fmt</a></li> <li><a href="/wiki/Fold_(Unix)" title="Fold (Unix)">fold</a></li> <li><a class="mw-selflink selflink">head</a></li> <li><a href="/wiki/Join_(Unix)" title="Join (Unix)">join</a></li> <li><a href="/wiki/Md5sum" title="Md5sum">md5sum</a></li> <li><a href="/wiki/Nl_(Unix)" title="Nl (Unix)">nl</a></li> <li><a href="/w/index.php?title=Numfmt&action=edit&redlink=1" class="new" title="Numfmt (page does not exist)">numfmt</a></li> <li><a href="/wiki/Od_(Unix)" title="Od (Unix)">od</a></li> <li><a href="/wiki/Paste_(Unix)" title="Paste (Unix)">paste</a></li> <li><a href="/wiki/Ptx_(Unix)" title="Ptx (Unix)">ptx</a></li> <li><a href="/wiki/Pr_(Unix)" title="Pr (Unix)">pr</a></li> <li><a href="/wiki/Sha1sum" title="Sha1sum">sha1sum</a></li> <li><a href="/wiki/Shuf" title="Shuf">shuf</a></li> <li><a href="/wiki/Sort_(Unix)" title="Sort (Unix)">sort</a></li> <li><a href="/wiki/Split_(Unix)" title="Split (Unix)">split</a></li> <li><a href="/wiki/Sum_(Unix)" title="Sum (Unix)">sum</a></li> <li>tac</li> <li><a href="/wiki/Tail_(Unix)" title="Tail (Unix)">tail</a></li> <li><a href="/wiki/Tr_(Unix)" title="Tr (Unix)">tr</a></li> <li><a href="/wiki/Tsort" title="Tsort">tsort</a></li> <li><a href="/wiki/Unexpand" title="Unexpand">unexpand</a></li> <li><a href="/wiki/Uniq" title="Uniq">uniq</a></li> <li><a href="/wiki/Wc_(Unix)" title="Wc (Unix)">wc</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Shell utilities</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Uname" title="Uname">arch</a></li> <li><a href="/wiki/Basename" title="Basename">basename</a></li> <li><a href="/wiki/Chroot" title="Chroot">chroot</a></li> <li><a href="/wiki/Unix_time#Command_line" title="Unix time">date</a></li> <li><a href="/wiki/Dirname" title="Dirname">dirname</a></li> <li><a href="/wiki/Du_(Unix)" title="Du (Unix)">du</a></li> <li><a href="/wiki/Echo_(command)" title="Echo (command)">echo</a></li> <li><a href="/wiki/Env" title="Env">env</a></li> <li><a href="/wiki/Expr" title="Expr">expr</a></li> <li><a href="/wiki/Factor_(Unix)" title="Factor (Unix)">factor</a></li> <li><a href="/wiki/True_and_false_(commands)" title="True and false (commands)">false</a></li> <li><a href="/wiki/Groups_(Unix)" class="mw-redirect" title="Groups (Unix)">groups</a></li> <li><a href="/w/index.php?title=Hostid_(Unix)&action=edit&redlink=1" class="new" title="Hostid (Unix) (page does not exist)">hostid</a></li> <li><a href="/wiki/Id_(Unix)" class="mw-redirect" title="Id (Unix)">id</a></li> <li><a href="/wiki/Link_(Unix)" title="Link (Unix)">link</a></li> <li><a href="/wiki/Logname" title="Logname">logname</a></li> <li><a href="/wiki/Nice_(Unix)" title="Nice (Unix)">nice</a></li> <li><a href="/wiki/Nohup" title="Nohup">nohup</a></li> <li><a href="/w/index.php?title=Nproc&action=edit&redlink=1" class="new" title="Nproc (page does not exist)">nproc</a></li> <li><a href="/w/index.php?title=Pathchk_(Unix)&action=edit&redlink=1" class="new" title="Pathchk (Unix) (page does not exist)">pathchk</a></li> <li><a href="/w/index.php?title=Pinky_(Unix)&action=edit&redlink=1" class="new" title="Pinky (Unix) (page does not exist)">pinky</a></li> <li><a href="/wiki/Printenv" class="mw-redirect" title="Printenv">printenv</a></li> <li><a href="/wiki/Printf" title="Printf">printf</a></li> <li><a href="/wiki/Pwd" title="Pwd">pwd</a></li> <li><a href="/wiki/Readlink" class="mw-redirect" title="Readlink">readlink</a></li> <li><a href="/w/index.php?title=Runcon&action=edit&redlink=1" class="new" title="Runcon (page does not exist)">runcon</a></li> <li><a href="/wiki/Seq_(Unix)" title="Seq (Unix)">seq</a></li> <li><a href="/wiki/Sleep_(command)" title="Sleep (command)">sleep</a></li> <li>stat</li> <li><a href="/w/index.php?title=Stdbuf&action=edit&redlink=1" class="new" title="Stdbuf (page does not exist)">stdbuf</a></li> <li><a href="/wiki/Stty_(Unix)" class="mw-redirect" title="Stty (Unix)">stty</a></li> <li><a href="/wiki/Tee_(command)" title="Tee (command)">tee</a></li> <li><a href="/wiki/Test_(Unix)" title="Test (Unix)">test</a></li> <li><a href="/wiki/Timeout_(computing)" title="Timeout (computing)">timeout</a></li> <li><a href="/wiki/True_and_false_(commands)" title="True and false (commands)">true</a></li> <li><a href="/wiki/Tty_(Unix)" title="Tty (Unix)">tty</a></li> <li><a href="/wiki/Uname" title="Uname">uname</a></li> <li><a href="/wiki/Unlink_(Unix)" title="Unlink (Unix)">unlink</a></li> <li><a href="/wiki/Uptime#coreutils" title="Uptime">uptime</a></li> <li><a href="/wiki/Users_(Unix)" class="mw-redirect" title="Users (Unix)">users</a></li> <li><a href="/wiki/Who_(Unix)" title="Who (Unix)">who</a></li> <li><a href="/wiki/Whoami" title="Whoami">whoami</a></li> <li><a href="/wiki/Yes_(Unix)" title="Yes (Unix)">yes</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img 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