Version control allows you to keep track of changes you make to scripts. It’s like a supercharged backup system. Each time you make changes and check in you have a new “version”. Make a mistake or need to “back out” a change and it is possible to go back to a previous version.
Here’s the original article:
http://www.mjtnet.com/blog/2007/10/26/version-control-for-your-scripts/
