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CHDIR(3P)                  POSIX Programmer's Manual                 CHDIR(3P)
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 direc-
       tory; 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  nei-
              ther 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 resolu-
              tion  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.1-2008, <unistd.h>
COPYRIGHT
       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 Electri-
       cal 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.ker-
       nel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group                  2013                            CHDIR(3P)