table of contents
Real(3) | User Contributed Perl Documentation | Real(3) |
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.
2011-11-18 | perl v5.40.0 |