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CHDIR(2)                   Linux Programmer's Manual                  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 descrip-
       tor.

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 3.22 of the Linux man-pages project.  A description of the project,  and  informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



Linux                             2007-07-26                          CHDIR(2)