Before reading, please note that anything surrounded by 'm/ and /' is to be interpreted as regex. If you are not familiar with regex, or REGular EXpressions, please  visit this CodeProject page. If you know a little, but don't know the syntax I'm using, visit the PerlDoc page for regex.

Introduction …

In the world of Linux and Unix, one of the most powerful tools available is the command line. Those of us who are lucky enough to have Bash at our disposal will probably know of many of its varied powers and features. These include the ability to modify and rerun …