how to check programs installation path in linux

There are many linux distributions like fedora, redhat, centos. Each has different program installation path. Using following commands you can check programs installation path in linux

how to check programs installation path in linux

Use following commands:

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[root@localhost ]# which php
/usr/bin/php
[root@localhost ]# which ruby
/usr/bin/ruby
[root@localhost ]# php --version
PHP 5.2.9 (cli) (built: Apr 17 2009 03:42:25)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
with eAccelerator v0.9.5.2, Copyright (c) 2004-2006 eAccelerator, by eAccelerator
[root@localhost ]# ruby --version
ruby 1.8.6 (2008-08-11 patchlevel 287) [i386-linux]
[root@localhost Desktop]#