Manual Reference Pages - FINDBIN (3)
FindBin - Locate directory of original perl script
use lib "$FindBin::Bin/../lib";
use FindBin qw($Bin);
use lib "$Bin/../lib";
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 <B>-eB> option or the perl script is read from
STDIN then FindBin sets both $Bin and $RealBin to the current
$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
If there are two modules using FindBin from different directories
under the same interpreter, this wont work. Since FindBin uses a
BEGIN block, itll be executed only once, and only the first caller
will get it right. This is a problem under mod_perl and other persistent
Perl environments, where you shouldnt use this module. Which also means
that you should avoid using FindBin in modules that you plan to put
on CPAN. To make sure that FindBin will work is to call the again
FindBin::again(); # or FindBin->again;
In former versions of FindBin there was no again function. The
workaround was to force the BEGIN block to be executed again:
FindBin is supported as part of the core perl distribution. Please send bug
reports to <email@example.com> using the perlbug program
included with perl.
Graham Barr <firstname.lastname@example.org>
Nick Ing-Simmons <email@example.com>
Copyright (c) 1995 Graham Barr & Nick Ing-Simmons. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
|perl v5.22.1 ||FINDBIN (3) ||2015-10-17 |
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