streamzip - create a zip file from stdin

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This is a development version of Perl. </div> <h1><a id="toc">CONTENTS</a></h1> <ul> <li> <a class="text-decoration-none" href="#NAME">NAME</a> </li> <li> <a class="text-decoration-none" href="#SYNOPSIS">SYNOPSIS</a> </li> <li> <a class="text-decoration-none" href="#DESCRIPTION">DESCRIPTION</a> <ul> <li> <a class="text-decoration-none" href="#OPTIONS">OPTIONS</a> </li> <li> <a class="text-decoration-none" href="#Examples">Examples</a> </li> <li> <a class="text-decoration-none" href="#When-to-write-a-Streamed-Zip-File">When to write a Streamed Zip File</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#SUPPORT">SUPPORT</a> </li> <li> <a class="text-decoration-none" href="#AUTHOR">AUTHOR</a> </li> <li> <a class="text-decoration-none" href="#COPYRIGHT">COPYRIGHT</a> </li> </ul> <h1 id="NAME"><a class="permalink" href="#NAME">#</a>NAME</h1> <p>streamzip - create a zip file from stdin</p> <h1 id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">#</a>SYNOPSIS</h1> <pre><code class="plaintext">producer | streamzip [opts] | consumer producer | streamzip [opts] -zipfile=output.zip</code></pre> <h1 id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">#</a>DESCRIPTION</h1> <p>This program will read data from <code>stdin</code>, compress it into a zip container and, by default, write a <i>streamed</i> zip file to <code>stdout</code>. No temporary files are created.</p> <p>The zip container written to <code>stdout</code> is, by necessity, written in streaming format. Most programs that read Zip files can cope with a streamed zip file, but if interoperability is important, and your workflow allows you to write the zip file directly to disk you can create a non-streamed zip file using the <code>zipfile</code> option.</p> <h2 id="OPTIONS"><a class="permalink" href="#OPTIONS">#</a>OPTIONS</h2> <dl> <dt id="-zip64"><a class="permalink" href="#-zip64">#</a><a id="zip64"></a>-zip64</dt> <dd> <p>Create a Zip64-compliant zip container. Use this option if the input is greater than 4Gig.</p> <p>Default is disabled.</p> </dd> <dt id="-zipfile=F"><a class="permalink" href="#-zipfile=F">#</a><a id="zipfile-F"></a>-zipfile=F</dt> <dd> <p>Write zip container to the filename <code>F</code>.</p> <p>Use the <code>Stream</code> option to force the creation of a streamed zip file.</p> </dd> <dt id="-member-name=M"><a class="permalink" href="#-member-name=M">#</a><a id="member-name-M"></a>-member-name=M</dt> <dd> <p>This option is used to name the "file" in the zip container.</p> <p>Default is '-'.</p> </dd> <dt id="-stream"><a class="permalink" href="#-stream">#</a><a id="stream"></a>-stream</dt> <dd> <p>Ignored when writing to <code>stdout</code>.</p> <p>If the <code>zipfile</code> option is specified, including this option will trigger the creation of a streamed zip file.</p> <p>Default: Always enabled when writing to <code>stdout</code>, otherwise disabled.</p> </dd> <dt id="-method=M"><a class="permalink" href="#-method=M">#</a><a id="method-M"></a>-method=M</dt> <dd> <p>Compress using method <code>M</code>.</p> <p>Valid method names are</p> <pre><code class="plaintext">* store Store without compression * deflate Use Deflate compression [Deflault] * bzip2 Use Bzip2 compression * lzma Use LZMA compression * xz Use xz compression * zstd Use Zstandard compression</code></pre> <p>Note that Lzma compress needs <code>IO::Compress::Lzma</code> to be installed.</p> <p>Note that Zstd compress needs <code>IO::Compress::Zstd</code> to be installed.</p> <p>Default is <code>deflate</code>.</p> </dd> <dt id="-0,-1,-2,-3,-4,-5,-6,-7,-8,-9"><a class="permalink" href="#-0,-1,-2,-3,-4,-5,-6,-7,-8,-9">#</a><a id="pod-0--1--2--3--4--5--6--7--8--9"></a>-0, -1, -2, -3, -4, -5, -6, -7, -8, -9</dt> <dd> <p>Sets the compression level for <code>deflate</code>. Ignored for all other compression methods.</p> <p><code>-0</code> means no compression and <code>-9</code> for maximum compression.</p> <p>Default is 6</p> </dd> <dt id="-version"><a class="permalink" href="#-version">#</a><a id="version"></a>-version</dt> <dd> <p>Display version number</p> </dd> <dt id="-help"><a class="permalink" href="#-help">#</a><a id="help"></a>-help</dt> <dd> <p>Display help</p> </dd> </dl> <h2 id="Examples"><a class="permalink" href="#Examples">#</a>Examples</h2> <p>Create a zip file bt reading daa from stdin</p> <pre><code class="plaintext">$ echo Lorem ipsum dolor sit | perl ./bin/streamzip >abcd.zip</code></pre> <p>Check the contents of <code>abcd,zip</code> with the standard <code>unzip</code> utility</p> <pre><code class="plaintext">Archive: abcd.zip Length Date Time Name --------- ---------- ----- ---- 22 2021-01-08 19:45 - --------- ------- 22 1 file</code></pre> <p>Notice how the <code>Name</code> is set to <code>-</code>. That is the default for a few zip utilities whwre the member name is not given.</p> <p>If you want to explicitly name the file, use the <code>-member-name</code> option as follows</p> <pre><code class="plaintext">$ echo Lorem ipsum dolor sit | perl ./bin/streamzip -member-name latin >abcd.zip $ unzip -l abcd.zip Archive: abcd.zip Length Date Time Name --------- ---------- ----- ---- 22 2021-01-08 19:47 latin --------- ------- 22 1 file</code></pre> <h2 id="When-to-write-a-Streamed-Zip-File"><a class="permalink" href="#When-to-write-a-Streamed-Zip-File">#</a><a id="When"></a>When to write a Streamed Zip File</h2> <p>A Streamed Zip File is useful in situations where you cannot seek backwards/forwards in the file.</p> <p>A good examples is when you are serving dynamic content from a Web Server straight into a socket without needing to create a temporary zip file in the filesystsm.</p> <p>Similarly if your workfow uses a Linux pipelined commands.</p> <h1 id="SUPPORT"><a class="permalink" href="#SUPPORT">#</a>SUPPORT</h1> <p>General feedback/questions/bug reports should be sent to <a href="https://github.com/pmqs/IO-Compress/issues">https://github.com/pmqs/IO-Compress/issues</a> (preferred) or <a href="https://rt.cpan.org/Public/Dist/Display.html?Name=IO-Compress">https://rt.cpan.org/Public/Dist/Display.html?Name=IO-Compress</a>.</p> <h1 id="AUTHOR"><a class="permalink" href="#AUTHOR">#</a>AUTHOR</h1> <p>Paul Marquess <i>pmqs@cpan.org</i>.</p> <h1 id="COPYRIGHT"><a class="permalink" href="#COPYRIGHT">#</a>COPYRIGHT</h1> <p>Copyright (c) 2019-2022 Paul Marquess. 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streamzip - create a zip file from stdin - Perldoc Browser