Added latest Version of Bash Guide

free-programming-books.md

@@ -671,6 +671,7 @@
 * [Getting Started with BASH](http://www.hypexr.org/bash_tutorial.php)
 * [Google Shell Style Guide](http://google-styleguide.googlecode.com/svn/trunk/shell.xml)
 * [Lhunath's Bash Guide](http://mywiki.wooledge.org/BashGuide)
+* [Linux Shell Scripting Tutorial - A Beginner's Handbook](http://www.freeos.com/guides/lsst/)
 * [The Command Line Crash Course](http://learncodethehardway.org/cli/book/) (also a Powershell reference)