Perl 5 version 30.0 documentation
FindBin - Locate directory of original perl script
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
, 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
then FindBin sets both
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
from different directories
under the same interpreter, this won't work. Since
BEGIN block, it'll 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 shouldn't use this module. Which also means
that you should avoid using
in modules that you plan to put
on CPAN. To make sure that
will work is to call the
- use FindBin;
- FindBin::again(); # or FindBin->again;
In former versions of FindBin there was no
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.