chdir(2)
NAME
chdir, fchdir - change working directory
SYNOPSIS
#include <unistd.h> int chdir(const char *path); int fchdir(int fd); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): fchdir(): _BSD_SOURCE || _XOPEN_SOURCE >= 500
DESCRIPTION
chdir() changes the current working directory of the calling process to
the directory specified in path.
fchdir() is identical to chdir(); the only difference is that the
directory is given as an open file descriptor.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is
set appropriately.
ERRORS
Depending on the file system, other errors can be returned. The more
general errors for chdir() are listed below:
- EACCES Search permission is denied for one of the components of path.
- (See also path_resolution(7).)
- EFAULT path points outside your accessible address space.
- EIO An I/O error occurred.
- ELOOP Too many symbolic links were encountered in resolving path.
- ENAMETOOLONG
- path is too long.
- ENOENT The file does not exist.
- ENOMEM Insufficient kernel memory was available.
- ENOTDIR
- A component of path is not a directory.
- The general errors for fchdir() are listed below:
- EACCES Search permission was denied on the directory open on fd.
- EBADF fd is not a valid file descriptor.
CONFORMING TO
SVr4, 4.4BSD, POSIX.1-2001.
NOTES
The current working directory is the starting point for interpreting
relative pathnames (those not starting with '/').
A child process created via fork(2) inherits its parent's current working directory. The current working directory is left unchanged by
execve(2).
The prototype for fchdir() is only available if _BSD_SOURCE is defined, or _XOPEN_SOURCE is defined with the value 500.
SEE ALSO
chroot(2), getcwd(3), path_resolution(7)
COLOPHON
- This page is part of release 3.25 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.