CentOS 7.0 - man page for findbin (centos section 3pm)
|Linux & Unix Commands - Search Man Pages
FindBin(3pm) Perl Programmers Reference Guide FindBin(3pm)
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 -e option or the perl script is read from "STDIN" then
FindBin sets both $Bin and $RealBin to the current directory.
$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 won't work. Since "FindBin" uses a "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 "FindBin" in modules that you plan to put on CPAN. To make
sure that "FindBin" will work is to call the "again" function:
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
<firstname.lastname@example.org> using the perlbug program included with perl.
Graham Barr <email@example.com> Nick Ing-Simmons <firstname.lastname@example.org>
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
perl v5.16.3 2013-03-04 FindBin(3pm)
All times are GMT -4. The time now is 05:47 PM.