221 lines
4.4 KiB
HTML
221 lines
4.4 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of CHDIR</TITLE>
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</HEAD><BODY>
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<H1>CHDIR</H1>
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Section: Linux Programmer's Manual (2)<BR>Updated: 2019-08-02<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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chdir, fchdir - change working directory
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>#include <<A HREF="file:///usr/include/unistd.h">unistd.h</A>></B>
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<P>
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<B>int chdir(const char *</B><I>path</I><B>);</B>
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<BR>
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<B>int fchdir(int </B><I>fd</I><B>);</B>
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<P>
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Feature Test Macro Requirements for glibc (see
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<B><A HREF="/cgi-bin/man/man2html?7+feature_test_macros">feature_test_macros</A></B>(7)):
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<P>
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<B>fchdir</B>():
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<DL COMPACT><DT id="1"><DD>
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_XOPEN_SOURCE >= 500
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<BR> || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
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<BR> || /* Glibc up to and including 2.19: */ _BSD_SOURCE
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</DL>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>chdir</B>()
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changes the current working directory of the calling process to the
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directory specified in
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<I>path</I>.
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<P>
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<B>fchdir</B>()
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is identical to
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<B>chdir</B>();
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the only difference is that the directory is given as an
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open file descriptor.
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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On success, zero is returned.
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On error, -1 is returned, and
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<I>errno</I>
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is set appropriately.
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<A NAME="lbAF"> </A>
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<H2>ERRORS</H2>
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Depending on the filesystem, other errors can be returned.
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The more
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general errors for
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<B>chdir</B>()
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are listed below:
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<DL COMPACT>
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<DT id="2"><B>EACCES</B>
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<DD>
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Search permission is denied for one of the components of
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<I>path</I>.
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(See also
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<B><A HREF="/cgi-bin/man/man2html?7+path_resolution">path_resolution</A></B>(7).)
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<DT id="3"><B>EFAULT</B>
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<DD>
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<I>path</I>
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points outside your accessible address space.
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<DT id="4"><B>EIO</B>
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<DD>
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An I/O error occurred.
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<DT id="5"><B>ELOOP</B>
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<DD>
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Too many symbolic links were encountered in resolving
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<I>path</I>.
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<DT id="6"><B>ENAMETOOLONG</B>
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<DD>
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<I>path</I>
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is too long.
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<DT id="7"><B>ENOENT</B>
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<DD>
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The directory specified in
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<I>path</I>
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does not exist.
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<DT id="8"><B>ENOMEM</B>
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<DD>
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Insufficient kernel memory was available.
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<DT id="9"><B>ENOTDIR</B>
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<DD>
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A component of
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<I>path</I>
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is not a directory.
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</DL>
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<P>
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The general errors for
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<B>fchdir</B>()
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are listed below:
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<DL COMPACT>
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<DT id="10"><B>EACCES</B>
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<DD>
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Search permission was denied on the directory open on
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<I>fd</I>.
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<DT id="11"><B>EBADF</B>
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<DD>
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<I>fd</I>
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is not a valid file descriptor.
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<DT id="12"><B>ENOTDIR</B>
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<DD>
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<I>fd</I>
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does not refer to a directory.
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</DL>
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<A NAME="lbAG"> </A>
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<H2>CONFORMING TO</H2>
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POSIX.1-2001, POSIX.1-2008, SVr4, 4.4BSD.
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<A NAME="lbAH"> </A>
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<H2>NOTES</H2>
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The current working directory is the starting point for interpreting
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relative pathnames (those not starting with '/').
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<P>
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A child process created via
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<B><A HREF="/cgi-bin/man/man2html?2+fork">fork</A></B>(2)
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inherits its parent's current working directory.
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The current working directory is left unchanged by
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<B><A HREF="/cgi-bin/man/man2html?2+execve">execve</A></B>(2).
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?2+chroot">chroot</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?3+getcwd">getcwd</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?7+path_resolution">path_resolution</A></B>(7)
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<A NAME="lbAJ"> </A>
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<H2>COLOPHON</H2>
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This page is part of release 5.05 of the Linux
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<I>man-pages</I>
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="13"><A HREF="#lbAB">NAME</A><DD>
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<DT id="14"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="15"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="16"><A HREF="#lbAE">RETURN VALUE</A><DD>
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<DT id="17"><A HREF="#lbAF">ERRORS</A><DD>
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<DT id="18"><A HREF="#lbAG">CONFORMING TO</A><DD>
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<DT id="19"><A HREF="#lbAH">NOTES</A><DD>
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<DT id="20"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="21"><A HREF="#lbAJ">COLOPHON</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:32 GMT, March 31, 2021
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</BODY>
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