• NAME
• SYNOPSIS
• DESCRIPTION
• EXPORTABLE FUNCTIONS
  • Bin
  • Script
  • RealBin
  • RealScript
  • BinDepth(n)
  • Dir()
  • RealDir()
• KNOWN ISSUES
• KNOWN BUGS
• AUTHORS
• COPYRIGHT

NAME

FindBin::Real - Locate directory of original perl script

SYNOPSIS

 use FindBin::Real;
 use lib FindBin::Real::Bin() . '/../lib';

 or

 use FindBin::Real qw(Bin);
 use lib Bin() . '/../lib';

 or

 # Run from /usr/bin/www/some/path/ or /usr/bin/www/some/other/path or any
 use FindBin::Real qw(BinDepth);
 use lib BinDepth(3) . '/lib';
 # And always got /usr/bin/www/lib !

DESCRIPTION

Locates the full path to the script bin directory to allow the use of paths relative to the bin directory.

This allows a user to setup a directory tree for some software with directories <root>/bin and <root>/lib and then the above example will allow the use of modules in the lib directory without knowing where the software tree is installed.

If perl is invoked using the -e option or the perl script is read from STDIN then FindBin sets both Bin() and RealBin() return values to the current directory.

EXPORTABLE FUNCTIONS

Bin

- path to bin directory from where script was invoked

Script

- basename of script from which perl was invoked

RealBin

- Bin() with all links resolved

RealScript

- Script() with all links resolved

BinDepth(n)

- path to n-level parent directory

Dir()

- the same as Bin()

RealDir()

- the same as RealBin()

KNOWN ISSUES

If there are two modules using FindBin::Real from different directories under the same interpreter, this WOULD work. Since FindBin::Real uses functions instead of BEGIN block in FindBin, it'll be executed on every script, and all callers will get it right. This module can be used under mod_perl and other persistent Perl environments, where you shouldn't use FindBin.

KNOWN BUGS

If perl is invoked as

   perl filename

and filename does not have executable rights and a program called filename exists in the users $ENV{PATH} which satisfies both -x and -T then FindBin assumes that it was invoked via the $ENV{PATH}.

Workaround is to invoke perl as

 perl ./filename

AUTHORS

Serguei Trouchelle <stro@railways.dp.ua>

FindBin::Real uses code from FindBin module, which was written by

Graham Barr <gbarr@pobox.com> Nick Ing-Simmons <nik@tiuk.ti.com>

COPYRIGHT

Copyright (c) 1995 Graham Barr & Nick Ing-Simmons. All rights reserved. Copyright (c) 2003-2005 Serguei Trouchelle. All rights reserved.

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