PROLOG

       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.

NAME

       chdir — change working directory

SYNOPSIS

       #include <unistd.h>

       int chdir(const char *path);

DESCRIPTION

       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 '/'.

RETURN VALUE

       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.

ERRORS

       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.

EXAMPLES

   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);

APPLICATION USAGE

       None.

RATIONALE

       The chdir() function only affects the working directory of the current process.

FUTURE DIRECTIONS

       None.

SEE ALSO

       getcwd()

       The Base Definitions volume of POSIX.1‐2017, <unistd.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group  Base
       Specifications  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  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.opengroup.org/unix/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                                   2017                                         CHDIR(3POSIX)