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       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 .