bionic (3) chdir.3posix.gz

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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.1‐2008, <unistd.h>


       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 Electrical 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.kernel.org/doc/man-pages/reporting_bugs.html .