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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>chdir</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_000_001_431"> </a>NAME</h4><blockquote><br>chdir - change working directory</blockquote><h4><a name = "tag_000_001_432"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="unistd.h.html">unistd.h</a>>int chdir(const char *<i>path</i>);</code></pre></blockquote><h4><a name = "tag_000_001_433"> </a>DESCRIPTION</h4><blockquote>The<i>chdir()</i>functioncauses the directory named by the pathname pointed to by the<i>path</i>argument to become the current working directory;that is, the starting point for path searches forpathnames not beginning with /.</blockquote><h4><a name = "tag_000_001_434"> </a>RETURN VALUE</h4><blockquote>Upon successful completion, 0 is returned. Otherwise, -1 is returned, thecurrent working directory remains unchanged and<i>errno</i>is set to indicate the error.</blockquote><h4><a name = "tag_000_001_435"> </a>ERRORS</h4><blockquote>The<i>chdir()</i>function will fail if:<dl compact><dt>[EACCES]<dd>Search permission is denied for any component of thepathname.<dt>[ELOOP]<dd>Too many symbolic links were encountered in resolving <i>path</i>.<dt>[ENAMETOOLONG]<dd>The<i>path</i>argument exceeds {PATH_MAX} in length or a pathname component is longer than{NAME_MAX}.<dt>[ENOENT]<dd>A component of <i>path</i> does not name an existing directoryor <i>path</i> is an empty string.<dt>[ENOTDIR]<dd>A component of the pathname is not a directory.</dl><p>The<i>chdir()</i>function may fail if:<dl compact><dt>[ENAMETOOLONG]<dd>Pathname resolution of a symbolic link produced an intermediate result whoselength exceeds {PATH_MAX}.</dl></blockquote><h4><a name = "tag_000_001_436"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_001_437"> </a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_001_438"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_001_439"> </a>SEE ALSO</h4><blockquote><i><a href="getcwd.html">getcwd()</a></i>,<i><a href="unistd.h.html"><unistd.h></a></i>.</blockquote><h4>DERIVATION</h4><blockquote>Derived from Issue 1 of the SVID.</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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