# phpman > info > File::Spec::Functions

[File::Spec](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec/markdown)::[Functions(3Perl)](https://www.chedong.com/phpMan.php/man/Functions/3Perl/markdown)Programmers Reference [File::Spec](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec/markdown)::[Functions(3perl)](https://www.chedong.com/phpMan.php/man/Functions/3perl/markdown)

NAME
       [File::Spec::Functions](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AFunctions/markdown) - portably perform operations on file names

SYNOPSIS
               use [File::Spec::Functions](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AFunctions/markdown);
               $x = catfile('a','b');

DESCRIPTION
       This module exports convenience functions for all of the class methods
       provided by [File::Spec](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec/markdown).

       For a reference of available functions, please consult
       [File::Spec::Unix](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AUnix/markdown), which contains the entire set, and which is inherited
       by the modules for other platforms. For further information, please see
       [File::Spec::Mac](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AMac/markdown), [File::Spec::OS2](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AOS2/markdown), [File::Spec::Win32](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AWin32/markdown), or
       [File::Spec::VMS](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AVMS/markdown).

   Exports
       The following functions are exported by default.

               canonpath
               catdir
               catfile
               curdir
               rootdir
               updir
               no_upwards
               file_name_is_absolute
               path

       The following functions are exported only by request.

               devnull
               tmpdir
               splitpath
               splitdir
               catpath
               abs2rel
               rel2abs
               case_tolerant

       All the functions may be imported using the ":ALL" tag.

COPYRIGHT
       Copyright (c) 2004 by the Perl 5 Porters.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

SEE ALSO
       [File::Spec](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec/markdown), [File::Spec::Unix](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AUnix/markdown), [File::Spec::Mac](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AMac/markdown), [File::Spec::OS2](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AOS2/markdown),
       [File::Spec::Win32](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AWin32/markdown), [File::Spec::VMS](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec%3A%3AVMS/markdown), [ExtUtils::MakeMaker](https://www.chedong.com/phpMan.php/perldoc/ExtUtils%3A%3AMakeMaker/markdown)

perl v5.34.0                      2025-07-25      [File::Spec](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ASpec/markdown)::[Functions(3perl)](https://www.chedong.com/phpMan.php/man/Functions/3perl/markdown)