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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>unlink</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_001_014_2581"> </a>NAME</h4><blockquote>unlink - call the <i><a href="../xsh/unlink.html">unlink()</a></i>function</blockquote><h4><a name = "tag_001_014_2582"> </a>SYNOPSIS</h4><blockquote><pre><code>unlink <i>file</i></code></pre></blockquote><h4><a name = "tag_001_014_2583"> </a>DESCRIPTION</h4><blockquote>The<i>unlink</i>utility performs the function call:<pre><code>unlink(<i>file</i>);</code></pre><p>A user may need appropriate privilege to invoke the<i>unlink</i>utility.</blockquote><h4><a name = "tag_001_014_2584"> </a>OPTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2585"> </a>OPERANDS</h4><blockquote>The following operands are supported:<dl compact><dt><i>file</i><dd>The pathname of an existing file.</dl></blockquote><h4><a name = "tag_001_014_2586"> </a>STDIN</h4><blockquote>Not used.</blockquote><h4><a name = "tag_001_014_2587"> </a>INPUT FILES</h4><blockquote>Not used.</blockquote><h4><a name = "tag_001_014_2588"> </a>ENVIRONMENT VARIABLES</h4><blockquote>The following environment variables affect the execution of<i>unlink</i>:<dl compact><dt><i>LANG</i><dd>Provide a default value for the internationalizationvariables that are unset or null.If<i>LANG</i>is unset or null, the corresponding value from theimplementation-dependent default locale will be used.If any of the internationalization variables contain an invalid setting,the utility will behave as if none of the variables had been set.<dt><i>LC_ALL</i><dd>If set to a non-empty string value, override the values ofall the other internationalization variables.<dt><i>LC_CTYPE</i><dd>Determine the locale for the interpretation of sequences ofbytes of text data as characters (for example, single- asopposed to multi-byte characters in arguments).<dt><i>LC_MESSAGES</i><dd>Determine the locale that should be used to affectthe format and contents of diagnostic messages written tostandard error.<dt><i>NLSPATH</i><dd>Determine the location of message catalogues for theprocessing of<i>LC_MESSAGES .</i></dl></blockquote><h4><a name = "tag_001_014_2589"> </a>ASYNCHRONOUS EVENTS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_2590"> </a>STDOUT</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2591"> </a>STDERR</h4><blockquote>Used only for diagnostic messages.</blockquote><h4><a name = "tag_001_014_2592"> </a>OUTPUT FILES</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2593"> </a>EXTENDED DESCRIPTION</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2594"> </a>EXIT STATUS</h4><blockquote>The following exit values are returned:<dl compact><dt> 0<dd>Successful completion.<dt>>0<dd>An error occurred.</dl></blockquote><h4><a name = "tag_001_014_2595"> </a>CONSEQUENCES OF ERRORS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_2596"> </a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2597"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2598"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_2599"> </a>SEE ALSO</h4><blockquote><i><a href="link.html">link</a></i>,<i><a href="rm.html">rm</a></i>,the <b>XSH</b> specification description of<i><a href="../xsh/unlink.html">unlink()</a></i>.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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