chdir man page on Oracle

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

       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.

       chdir - change working directory

       #include <unistd.h>

       int chdir(const char *path);

       The chdir() function shall cause the directory named  by	 the  pathname
       pointed	to  by	the path argument to become the current working direcā€
       tory; that is, the starting point for path searches for	pathnames  not
       beginning with '/' .

       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.

       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.

	      The length of the path argument exceeds {PATH_MAX} or a pathname
	      component is longer than {NAME_MAX}.

       ENOENT A	 component of path does not name an existing directory or path
	      is an empty string.

	      A component of the pathname is not a directory.

       The chdir() function may fail if:

       ELOOP  More than {SYMLOOP_MAX} symbolic links were  encountered	during
	      resolution of the path argument.

	      As a result of encountering a symbolic link in resolution of the
	      path argument, the length of  the	 substituted  pathname	string
	      exceeded {PATH_MAX}.

       The following sections are informative.

   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);


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


       getcwd(),   the	 Base	Definitions  volume  of	 IEEE Std 1003.1-2001,

       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 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 .

IEEE/The Open Group		     2003			     CHDIR(3P)

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