PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

CHDIR(3P)                 POSIX Programmer's Manual                CHDIR(3P)

PROLOG         top

       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         top

       chdir — change working directory

SYNOPSIS         top

       #include <unistd.h>

       int chdir(const char *path);

DESCRIPTION         top

       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         top

       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         top

       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         top

   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         top

       None.

RATIONALE         top

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

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       getcwd(3p)

       The Base Definitions volume of POSIX.1‐2008, unistd.h(0p)

COPYRIGHT         top

       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 .

IEEE/The Open Group                 2013                           CHDIR(3P)

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