Cwd(3)									Cwd(3)

NAME    [Toc]    [Back]

     getcwd - get pathname of current working directory

SYNOPSIS    [Toc]    [Back]

	 use Cwd;
	 $dir =	cwd;

	 use Cwd;
	 $dir =	getcwd;

	 use Cwd;
	 $dir =	fastgetcwd;

	 use Cwd 'chdir';
	 chdir "/tmp";
	 print $ENV{'PWD'};

DESCRIPTION    [Toc]    [Back]

     The getcwd() function re-implements the getcw
) functions
     in	Perl.

     The fastcwd() function looks the same as getcwd(),	but runs faster.  It's
     also more dangerous because it might conceivably chdir() you out of a
     directory that it can't chdir() you back into.  If	fastcwd	encounters a
     problem it	will return undef but will probably leave you in a different
     directory.	 For a measure of extra	security, if everything	appears	to
     have worked, the fastcwd()	function will check that it leaves you in the
     same directory that it started in.	If it has changed it will die with the
     message "Unstable directory path, current directory changed
     unexpectedly". That should	never happen.

     The cwd() function	looks the same as getcwd and fastgetcwd	but is
     implemented using the most	natural	and safe form for the current
     architecture. For most systems it is identical to `pwd` (but without the
     trailing line terminator).

     It	is recommended that cwd	(or another *cwd() function) is	used in	all
     code to ensure portability.

     If	you ask	to override your chdir() built-in function, then your PWD
     environment variable will be kept up to date.  (See the section on
     Overriding	Builtin	Functions in the perlsub manpage.) Note	that it	will
     only be kept up to	date if	all packages which use chdir import it from
     Cwd.


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