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CHDIR(3P) POSIX Programmer's Manual CHDIR(3P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
chdir — change working directory
#include <unistd.h>
int chdir(const char *path);
The chdir() function shall cause the directory named by the pathname
pointed to by the path argument to become the current working
directory; that is, the starting point for path searches for
pathnames not beginning with '/'.
Upon successful completion, 0 shall be returned. Otherwise, −1 shall
be returned, the current working directory shall remain unchanged,
and errno shall be set to indicate the error.
The chdir() function shall fail if:
EACCES Search permission is denied for any component of the pathname.
ELOOP A loop exists in symbolic links encountered during resolution
of the path argument.
ENAMETOOLONG
The length of a component of a pathname is longer than
{NAME_MAX}.
ENOENT A component of path does not name an existing directory or
path is an empty string.
ENOTDIR
A component of the pathname names an existing file that is
neither a directory nor a symbolic link to a directory.
The chdir() function may fail if:
ELOOP More than {SYMLOOP_MAX} symbolic links were encountered during
resolution of the path argument.
ENAMETOOLONG
The length of a pathname exceeds {PATH_MAX}, or pathname
resolution of a symbolic link produced an intermediate result
with a length that exceeds {PATH_MAX}.
The following sections are informative.
Changing the Current Working Directory
The following example makes the value pointed to by directory, /tmp,
the current working directory.
#include <unistd.h>
...
char *directory = "/tmp";
int ret;
ret = chdir (directory);
None.
The chdir() function only affects the working directory of the
current process.
None.
getcwd(3p)
The Base Definitions volume of POSIX.1‐2008, unistd.h(0p)
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 CHDIR(3P)
Pages that refer to this page: cd(1p), fchdir(3p)