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<span id="openzim-page-title" class="mw-page-title-main">ln (Unix)</span>
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</style><table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above summary">ln</th></tr><tr><td colspan="2" class="infobox-image logo"><div class="infobox-caption">Example usage of <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">ln</code> utility</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Original author(s)</a></th><td class="infobox-data"><a href="AT%26T_Bell_Laboratories" class="mw-redirect" title="AT&amp;T Bell Laboratories">AT&amp;T Bell Laboratories</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data">Various <a href="Open-source_software" title="Open-source software">open-source</a> and <a href="Commercial_software" title="Commercial software">commercial</a> developers</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">November&nbsp;3, 1971<span style="display:none">&nbsp;(<span class="bday dtstart published updated">1971-11-03</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="Unix" title="Unix">Unix</a>, <a href="Unix-like" title="Unix-like">Unix-like</a>, <a href="IBM_i" title="IBM i">IBM i</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data"><a href="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="Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="Command_(computing)" title="Command (computing)">Command</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="Coreutils" class="mw-redirect" title="Coreutils">coreutils</a>: <a href="GPLv3%2B" class="mw-redirect" title="GPLv3+">GPLv3+</a></td></tr></tbody></table>
<p><b><code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">ln</code></b> is a <a href="Shell_(computing)" title="Shell (computing)">shell</a> <a href="Command_(computing)" title="Command (computing)">command</a> for creating a link file to an existing <a href="Computer_file" title="Computer file">file</a> or <a href="Computer_directory" class="mw-redirect" title="Computer directory">directory</a>.<sup id="cite_ref-UNIXKP_1-0" class="reference"><a href="#cite_note-UNIXKP-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> By default, the command creates a <a href="Hard_link" title="Hard link">hard link</a>, but with the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-s</code> <a href="Command-line_interface" title="Command-line interface">command line</a> option, it creates a <a href="Symbolic_link" title="Symbolic link">symbolic link</a>.<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> Most systems disallow a hard link to a directory since such links could disrupt the structure of a <a href="File_system" title="File system">file system</a> and interfere with the operation of other utilities.<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> The command can create a symbolic link to non-existent file.<sup id="cite_ref-GNULnman_4-0" class="reference"><a href="#cite_note-GNULnman-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>
</p><p>The command appeared in Issue 2 of the <a href="X/Open" title="X/Open">X/Open</a> Portability Guidelines.<sup id="cite_ref-SUS_5-0" class="reference"><a href="#cite_note-SUS-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The version in <a href="GNU_Core_Utilities" title="GNU Core Utilities">GNU Core Utilities</a> was written by Mike Parker and David MacKenzie.<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>
The command is available in <a href="Windows" class="mw-redirect" title="Windows">Windows</a> via <a href="UnxUtils" title="UnxUtils">UnxUtils</a><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> and has been ported to <a href="IBM_i" title="IBM i">IBM i</a>.<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>
</p>
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<div class="mw-heading mw-heading2"><h2 id="Links">Links</h2></div>
<p>A link allows more than one <a href="File_path" class="mw-redirect" title="File path">path</a> to refer to the same file.
</p><p>A hard link is a directory entry that refers to a file's <a href="Inode" title="Inode">inode</a> (an internal <a href="Reference_(computer_science)" title="Reference (computer science)">reference</a>). A file can have multiple hard links – each referring to the same <a href="Inode" title="Inode">inode</a>.<sup id="cite_ref-libc_9-0" class="reference"><a href="#cite_note-libc-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Creating a hard link does not copy the contents of the file; but merely causes another name to be associated with the same content. When a hard link is created for a file, a <a href="Reference_counting#File_systems" title="Reference counting">counter</a> in its inode is incremented, and removing a hard link results in decrementing the counter. A file is not deleted (to allow reusing its storage space) until its reference count reaches zero.<sup id="cite_ref-UNIXKP_1-1" class="reference"><a href="#cite_note-UNIXKP-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-IBMInode_10-0" class="reference"><a href="#cite_note-IBMInode-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> A hard link can only refer to an object on the same <a href="File_system" title="File system">file system</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>
</p><p>A symbolic link refers to another file by its path (a symbolic reference).<sup id="cite_ref-GNULnman_4-1" class="reference"><a href="#cite_note-GNULnman-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> When encountered during pathname resolution, modify the <a rel="nofollow" class="external text" href="http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html#tag_04_13">pathname resolution</a> to be taken to the location which the symbolic link contains. The content of a symbolic link is the target path, which can also be examined via the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">readlink</code> command.<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> A symbolic link may specify a path that does not refer to an existing file. Resolving such a symbolic link will fail until a file is created at its specified path. Also, a symbolic link to an existing file will fail to resolve if the file is moved.<sup id="cite_ref-libc_9-1" class="reference"><a href="#cite_note-libc-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Use">Use</h2></div>
<p>Per the <a href="Single_Unix_Specification" class="mw-redirect" title="Single Unix Specification">Single Unix Specification</a>, the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">ln</code> command is specified in the Shell and Utilities (XCU) document.<sup id="cite_ref-SUSOverview_13-0" class="reference"><a href="#cite_note-SUSOverview-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> <a href="POSIX" title="POSIX">POSIX</a> includes a similar specification.<sup id="cite_ref-SUS_5-1" class="reference"><a href="#cite_note-SUS-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>
</p><p>If neither target file nor target directory are specified, links are created in the current <a href="Working_directory" title="Working directory">working directory</a>.
</p>
<div class="mw-heading mw-heading3"><h3 id="Options">Options</h3></div>
<p>The specification indicates command line options that must be supported:
</p>
<ul><li><code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-f</code> (force) <a href="Clobbering" title="Clobbering">Clobbers</a> an existing file if the output path specifies an existing file</li>
<li><code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-L</code> If a source operand specifies a symbolic link, create a hard link to the link's target file</li>
<li><code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-P</code> If a source operand specifies a symbolic link, create a hard link to the symbolic link file</li>
<li><code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-s</code> Create symbolic links instead of hard links; causes <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-L</code> and <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-P</code> to be silently ignored</li></ul>
<p>If more than one of the mutually-exclusive options <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-L</code> and <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-P</code> is specified, the last option specified determines the resulting behavior.
</p><p>If the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-s</code> option is not specified and neither a <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-L</code> nor a <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-P</code> option is specified, the implementation defines which of the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-L</code> and <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">-P</code> options is used by default.
</p>
<div class="mw-heading mw-heading3"><h3 id="Single_file_invocation">Single file invocation</h3></div>
<p>The command creates a new link to the path indicated by <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">source</code>; stored at the path indicated by <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">target</code>. The syntax is as follows:
</p>
<div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"><pre>ln [-fs] [-L|-P] source target
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Multiple_file_invocation">Multiple file invocation</h3></div>
<p>The command creates a new link to each file specified by the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">source_#</code> operands; stored in an existing directory indicated by <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">target_dir</code>.
</p>
<div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"><pre>ln [-fs] [-L|-P] source_1 source_2 ... target_dir
</pre></div>
<div class="mw-heading mw-heading2"><h2 id="Examples">Examples</h2></div>
<p>The following creates a hard link to file <b>foo</b> called <b>bar</b>.
</p>
<pre>ln foo bar
</pre>
<p>The following creates a symbolic link to file <b>foo</b> called <b>bar</b>.
</p>
<pre>ln -s foo bar
</pre>
<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="List_of_POSIX_commands" title="List of POSIX commands">List of POSIX commands</a></li>
<li><a href="NTFS_junction_point" class="mw-redirect" title="NTFS junction point">NTFS junction point</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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</li>
<li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><cite id="CITEREFIBM" class="citation web cs1"><a href="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>. <i><a href="IBM" title="IBM">IBM</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2020-09-05</span></span>.</cite></span>
</li>
<li id="cite_note-libc-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-libc_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-libc_9-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFLoosemoreStallmanMcGrathOram" class="citation book cs1">Loosemore, Sandra; Stallman, Richard M.; McGrath, Roland; Oram, Andrew; Drepper, Ulrich. <a rel="nofollow" class="external text" href="https://www.gnu.org/software/libc/manual/pdf/libc.pdf"><i>The GNU C Library Reference Manual</i></a> <span class="cs1-format">(PDF)</span>. Free Software Foundation, Inc. p.&nbsp;392<span class="reference-accessdate">. Retrieved <span class="nowrap">7 August</span> 2015</span>.</cite></span>
</li>
<li id="cite_note-IBMInode-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-IBMInode_10-0">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.ibm.com/developerworks/aix/library/au-speakingunix14/">"Speaking UNIX: It is all about the inode"</a>. <i>ibm.com</i>. IBM developerWorks<span class="reference-accessdate">. Retrieved <span class="nowrap">7 August</span> 2015</span>.</cite></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"><cite id="CITEREFBovetCesati2005" class="citation book cs1">Bovet, Daniel P.; Cesati, Marco (2005). <i>Understanding the Linux Kernel</i> (3rd&nbsp;ed.). Boston, MA: Safari Tech Books Online. p.&nbsp;14. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&nbsp;<bdi>0596005652</bdi>.</cite></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"><cite id="ReadlinkMan" class="citation web cs1"><a rel="nofollow" class="external text" href="http://linux.die.net/man/1/readlink">"readlink(1) - Linux man page"</a>. <i>linux.die.net</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 August</span> 2015</span>.</cite></span>
</li>
<li id="cite_note-SUSOverview-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-SUSOverview_13-0">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.unix.org/version4/overview.html">"The Single UNIX Specification, Version 4 - Overview"</a>. <i>unix.org</i>. unix.org<span class="reference-accessdate">. Retrieved <span class="nowrap">7 August</span> 2015</span>.</cite></span>
</li>
</ol></div>
<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
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<div class="side-box-image"><span class="noviewer" typeof="mw:File"></span></div>
<div class="side-box-text plainlist">The Wikibook <i><a href="https://en.wikibooks.org/wiki/Guide_to_Unix" class="extiw external" 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/File_System_Utilities#ln" class="extiw external" title="wikibooks:Guide to Unix/Commands/File System Utilities">File System Utilities - ln</a></b></i></div></div>
</div>
<ul><li><span class="neverexpand"><code><a rel="nofollow" class="external text" href="https://linux.die.net/man/1/ln">ln(1)</a></code></span>&nbsp;–&nbsp;<a href="Linux" title="Linux">Linux</a> User Commands <a href="Man_page" title="Man page">Manual</a></li>
<li><span class="neverexpand"><code><a rel="nofollow" class="external text" href="https://www.freebsd.org/cgi/man.cgi?query=ln&amp;sektion=1">ln(1)</a></code></span>&nbsp;–&nbsp;<a href="FreeBSD" title="FreeBSD">FreeBSD</a> General Commands <a href="Man_page" title="Man page">Manual</a></li>
<li><span class="neverexpand"><code><a rel="nofollow" class="external text" href="https://man.netbsd.org/ln.1">ln(1)</a></code></span>&nbsp;–&nbsp;<a href="NetBSD" title="NetBSD">NetBSD</a> General Commands <a href="Man_page" title="Man page">Manual</a></li>
<li><span class="neverexpand"><code><a rel="nofollow" class="external text" href="https://man.openbsd.org/ln.1">ln(1)</a></code></span>&nbsp;–&nbsp;<a href="OpenBSD" title="OpenBSD">OpenBSD</a> General Commands <a href="Man_page" title="Man page">Manual</a></li>
<li><span class="neverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/ln.1.html">ln(1)</a></code></span>&nbsp;–&nbsp;<a href="Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="MacOS" title="MacOS">macOS</a> General Commands <a href="Man_page" title="Man page">Manual</a></li></ul>
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/* end https://en.wikipedia.org/ */
</style><div id="Unix_command-line_interface_programs_and_shell_builtins541" style="font-size:114%;margin:0 4em"><a href="Unix" title="Unix">Unix</a> <a href="Command-line_interface" title="Command-line interface">command-line interface</a> programs and <a href="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="Cat_(Unix)" title="Cat (Unix)">cat</a></li>
<li><a href="Chattr" title="Chattr">chattr</a></li>
<li><a href="Chmod" title="Chmod">chmod</a></li>
<li><a href="Chown" title="Chown">chown</a></li>
<li><a href="Chgrp" title="Chgrp">chgrp</a></li>
<li><a href="Cksum" title="Cksum">cksum</a></li>
<li><a href="Cmp_(Unix)" title="Cmp (Unix)">cmp</a></li>
<li><a href="Cp_(Unix)" title="Cp (Unix)">cp</a></li>
<li><a href="Dd_(Unix)" title="Dd (Unix)">dd</a></li>
<li><a href="Du_(Unix)" title="Du (Unix)">du</a></li>
<li><a href="Df_(Unix)" title="Df (Unix)">df</a></li>
<li><a href="File_(command)" title="File (command)">file</a></li>
<li><a href="Fuser_(Unix)" title="Fuser (Unix)">fuser</a></li>

<li><a href="Ls" title="Ls">ls</a></li>
<li><a href="Mkdir" title="Mkdir">mkdir</a></li>
<li><a href="Mv_(Unix)" title="Mv (Unix)">mv</a></li>
<li><a href="Pax_(command)" title="Pax (command)">pax</a></li>
<li><a href="Pwd" title="Pwd">pwd</a></li>
<li><a href="Rm_(Unix)" title="Rm (Unix)">rm</a></li>
<li><a href="Rmdir" title="Rmdir">rmdir</a></li>
<li><a href="Split_(Unix)" title="Split (Unix)">split</a></li>
<li><a href="Tee_(command)" title="Tee (command)">tee</a></li>
<li><a href="Touch_(command)" title="Touch (command)">touch</a></li>
<li><a href="Type_(Unix)" title="Type (Unix)">type</a></li>
<li><a href="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="At_(command)" title="At (command)">at</a></li>
<li><a href="Job_control_(Unix)#Commands" title="Job control (Unix)">bg</a></li>
<li><a href="Cron" title="Cron">crontab</a></li>
<li><a href="Job_control_(Unix)#Commands" title="Job control (Unix)">fg</a></li>
<li><a href="Kill_(command)" title="Kill (command)">kill</a></li>
<li><a href="Nice_(Unix)" title="Nice (Unix)">nice</a></li>
<li><a href="Ps_(Unix)" title="Ps (Unix)">ps</a></li>
<li><a href="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="Env" title="Env">env</a></li>
<li><a href="Exit_(command)" title="Exit (command)">exit</a></li>
<li><a href="Logname" title="Logname">logname</a></li>
<li><a href="Mesg" title="Mesg">mesg</a></li>
<li><a href="Talk_(software)" title="Talk (software)">talk</a></li>
<li><a href="Tput" title="Tput">tput</a></li>
<li><a href="Uname" title="Uname">uname</a></li>
<li><a href="Who_(Unix)" title="Who (Unix)">who</a></li>
<li><a href="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="AWK" title="AWK">awk</a></li>
<li><a href="Basename" title="Basename">basename</a></li>
<li><a href="Comm" title="Comm">comm</a></li>
<li><a href="Csplit" title="Csplit">csplit</a></li>
<li><a href="Cut_(Unix)" title="Cut (Unix)">cut</a></li>
<li><a href="Diff" title="Diff">diff</a></li>
<li><a href="Dirname" title="Dirname">dirname</a></li>
<li><a href="Ed_(text_editor)" class="mw-redirect" title="Ed (text editor)">ed</a></li>
<li><a href="Ex_(text_editor)" title="Ex (text editor)">ex</a></li>
<li><a href="Fold_(Unix)" title="Fold (Unix)">fold</a></li>
<li><a href="Head_(Unix)" title="Head (Unix)">head</a></li>
<li><a href="Iconv" title="Iconv">iconv</a></li>
<li><a href="Join_(Unix)" title="Join (Unix)">join</a></li>
<li><a href="M4_(computer_language)" title="M4 (computer language)">m4</a></li>
<li><a href="More_(command)" title="More (command)">more</a></li>
<li><a href="Nl_(Unix)" title="Nl (Unix)">nl</a></li>
<li><a href="Paste_(Unix)" title="Paste (Unix)">paste</a></li>
<li><a href="Patch_(Unix)" title="Patch (Unix)">patch</a></li>
<li><a href="Printf_(Unix)" title="Printf (Unix)">printf</a></li>
<li><a href="Read_(Unix)" title="Read (Unix)">read</a></li>
<li><a href="Sed" title="Sed">sed</a></li>
<li><a href="Sort_(Unix)" title="Sort (Unix)">sort</a></li>
<li><a href="Strings_(Unix)" title="Strings (Unix)">strings</a></li>
<li><a href="Tail_(Unix)" title="Tail (Unix)">tail</a></li>
<li><a href="Tr_(Unix)" title="Tr (Unix)">tr</a></li>
<li><a href="Troff" title="Troff">troff</a></li>
<li><a href="Uniq" title="Uniq">uniq</a></li>
<li><a href="Vi_(text_editor)" title="Vi (text editor)">vi</a></li>
<li><a href="Wc_(Unix)" title="Wc (Unix)">wc</a></li>
<li><a href="Xargs" title="Xargs">xargs</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="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="Alias_(command)" title="Alias (command)">alias</a></li>
<li><a href="Cd_(command)" title="Cd (command)">cd</a></li>
<li><a href="Echo_(command)" title="Echo (command)">echo</a></li>
<li><a href="Test_(Unix)" title="Test (Unix)">test</a></li>
<li><a href="Environment_variable#unset_command" title="Environment variable">unset</a></li>
<li><a href="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="Find_(Unix)" title="Find (Unix)">find</a></li>
<li><a href="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="Man_page" title="Man page">man</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="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="Ar_(Unix)" title="Ar (Unix)">ar</a></li>
<li><a href="Ctags" title="Ctags">ctags</a></li>
<li><a href="Lex_(software)" title="Lex (software)">lex</a></li>
<li><a href="Make_(software)" title="Make (software)">make</a></li>
<li><a href="Nm_(Unix)" title="Nm (Unix)">nm</a></li>
<li><a href="Strip_(Unix)" title="Strip (Unix)">strip</a></li>
<li><a href="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="Bc_(programming_language)" title="Bc (programming language)">bc</a></li>
<li><a href="Cal_(command)" title="Cal (command)">cal</a></li>
<li><a href="Expr" title="Expr">expr</a></li>
<li><a href="System_V_printing_system" title="System V printing system">lp</a></li>
<li><a href="Od_(Unix)" title="Od (Unix)">od</a></li>
<li><a href="Sleep_(command)" title="Sleep (command)">sleep</a></li>
<li><a href="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"></span></span> <b>Categories</b>
<ul><li>Standard Unix programs</li>
<li>Unix SUS2008 utilities</li></ul></li>
<li><span class="noviewer" typeof="mw:File"><span title="List-Class article"></span></span> <b><a href="List_of_POSIX_commands" title="List of POSIX commands">List</a></b></li></ul>
</div></td></tr></tbody></table></div>
<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="GNU_Core_Utilities_command-line_interface_programs98" 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"><div id="GNU_Core_Utilities_command-line_interface_programs98" style="font-size:114%;margin:0 4em"><a href="GNU_Core_Utilities" title="GNU Core Utilities">GNU Core Utilities</a> <a href="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>chcon</li>
<li><a href="Chmod" title="Chmod">chmod</a></li>
<li><a href="Chown" title="Chown">chown</a></li>
<li><a href="Chgrp" title="Chgrp">chgrp</a></li>
<li><a href="Cksum" title="Cksum">cksum</a></li>
<li><a href="Cp_(Unix)" title="Cp (Unix)">cp</a></li>
<li><a href="Dd_(Unix)" title="Dd (Unix)">dd</a></li>
<li><a href="Df_(Unix)" title="Df (Unix)">df</a></li>
<li><a href="Ls" title="Ls">dir</a></li>
<li>dircolors</li>
<li><a href="Install_(Unix)" title="Install (Unix)">install</a></li>

<li><a href="Ls" title="Ls">ls</a></li>
<li><a href="Mkdir" title="Mkdir">mkdir</a></li>
<li><a href="Mkfifo" class="mw-redirect" title="Mkfifo">mkfifo</a></li>
<li><a href="Mknod" class="mw-redirect" title="Mknod">mknod</a></li>
<li><a href="Mktemp" title="Mktemp">mktemp</a></li>
<li><a href="Mv_(Unix)" title="Mv (Unix)">mv</a></li>
<li>realpath</li>
<li><a href="Rm_(Unix)" title="Rm (Unix)">rm</a></li>
<li><a href="Rmdir" title="Rmdir">rmdir</a></li>
<li><a href="Shred_(Unix)" title="Shred (Unix)">shred</a></li>
<li><a href="Sync_(Unix)" title="Sync (Unix)">sync</a></li>
<li><a href="Touch_(command)" title="Touch (command)">touch</a></li>
<li><a href="Truncate" class="mw-redirect" title="Truncate">truncate</a></li>
<li><a href="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>b2sum</li>
<li><a href="Base32" title="Base32">base32</a></li>
<li><a href="Base64" title="Base64">base64</a></li>
<li><a href="Cat_(Unix)" title="Cat (Unix)">cat</a></li>
<li><a href="Cksum" title="Cksum">cksum</a></li>
<li><a href="Comm" title="Comm">comm</a></li>
<li><a href="Csplit" title="Csplit">csplit</a></li>
<li><a href="Cut_(Unix)" title="Cut (Unix)">cut</a></li>
<li><a href="Expand_(Unix)" title="Expand (Unix)">expand</a></li>
<li><a href="Fmt_(Unix)" title="Fmt (Unix)">fmt</a></li>
<li><a href="Fold_(Unix)" title="Fold (Unix)">fold</a></li>
<li><a href="Head_(Unix)" title="Head (Unix)">head</a></li>
<li><a href="Join_(Unix)" title="Join (Unix)">join</a></li>
<li><a href="Md5sum" title="Md5sum">md5sum</a></li>
<li><a href="Nl_(Unix)" title="Nl (Unix)">nl</a></li>
<li>numfmt</li>
<li><a href="Od_(Unix)" title="Od (Unix)">od</a></li>
<li><a href="Paste_(Unix)" title="Paste (Unix)">paste</a></li>
<li><a href="Ptx_(Unix)" title="Ptx (Unix)">ptx</a></li>
<li><a href="Pr_(Unix)" title="Pr (Unix)">pr</a></li>
<li><a href="Sha1sum" title="Sha1sum">sha1sum</a></li>
<li><a href="Shuf" title="Shuf">shuf</a></li>
<li><a href="Sort_(Unix)" title="Sort (Unix)">sort</a></li>
<li><a href="Split_(Unix)" title="Split (Unix)">split</a></li>
<li><a href="Sum_(Unix)" title="Sum (Unix)">sum</a></li>
<li>tac</li>
<li><a href="Tail_(Unix)" title="Tail (Unix)">tail</a></li>
<li><a href="Tr_(Unix)" title="Tr (Unix)">tr</a></li>
<li><a href="Tsort" title="Tsort">tsort</a></li>
<li><a href="Unexpand" title="Unexpand">unexpand</a></li>
<li><a href="Uniq" title="Uniq">uniq</a></li>
<li><a href="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="Uname" title="Uname">arch</a></li>
<li><a href="Basename" title="Basename">basename</a></li>
<li><a href="Chroot" title="Chroot">chroot</a></li>
<li><a href="Unix_time#Command_line" title="Unix time">date</a></li>
<li><a href="Dirname" title="Dirname">dirname</a></li>
<li><a href="Du_(Unix)" title="Du (Unix)">du</a></li>
<li><a href="Echo_(command)" title="Echo (command)">echo</a></li>
<li><a href="Env" title="Env">env</a></li>
<li><a href="Expr" title="Expr">expr</a></li>
<li><a href="Factor_(Unix)" title="Factor (Unix)">factor</a></li>
<li><a href="True_and_false_(commands)" title="True and false (commands)">false</a></li>
<li><a href="Groups_(Unix)" class="mw-redirect" title="Groups (Unix)">groups</a></li>
<li>hostid</li>
<li><a href="Id_(Unix)" class="mw-redirect" title="Id (Unix)">id</a></li>
<li><a href="Link_(Unix)" title="Link (Unix)">link</a></li>
<li><a href="Logname" title="Logname">logname</a></li>
<li><a href="Nice_(Unix)" title="Nice (Unix)">nice</a></li>
<li><a href="Nohup" title="Nohup">nohup</a></li>
<li>nproc</li>
<li>pathchk</li>
<li>pinky</li>
<li><a href="Printenv" class="mw-redirect" title="Printenv">printenv</a></li>
<li><a href="Printf" title="Printf">printf</a></li>
<li><a href="Pwd" title="Pwd">pwd</a></li>
<li><a href="Readlink" class="mw-redirect" title="Readlink">readlink</a></li>
<li>runcon</li>
<li><a href="Seq_(Unix)" title="Seq (Unix)">seq</a></li>
<li><a href="Sleep_(command)" title="Sleep (command)">sleep</a></li>
<li>stat</li>
<li>stdbuf</li>
<li><a href="Stty_(Unix)" class="mw-redirect" title="Stty (Unix)">stty</a></li>
<li><a href="Tee_(command)" title="Tee (command)">tee</a></li>
<li><a href="Test_(Unix)" title="Test (Unix)">test</a></li>
<li><a href="Timeout_(computing)" title="Timeout (computing)">timeout</a></li>
<li><a href="True_and_false_(commands)" title="True and false (commands)">true</a></li>
<li><a href="Tty_(Unix)" title="Tty (Unix)">tty</a></li>
<li><a href="Uname" title="Uname">uname</a></li>
<li><a href="Unlink_(Unix)" title="Unlink (Unix)">unlink</a></li>
<li><a href="Uptime#coreutils" title="Uptime">uptime</a></li>
<li><a href="Users_(Unix)" class="mw-redirect" title="Users (Unix)">users</a></li>
<li><a href="Who_(Unix)" title="Who (Unix)">who</a></li>
<li><a href="Whoami" title="Whoami">whoami</a></li>
<li><a href="Yes_(Unix)" title="Yes (Unix)">yes</a></li></ul>
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