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 filenameand 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 ./filenameAUTHORS
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.