I enjoy writing small utilities for various things I do regularly on my Linux boxes - I've cleaned up some of them and placed them as Gists for use.
Check out my GitHub IO Page for a more up-to-date summary of what I've been doing lately.
9 What goes on when requesting a URL in a browser? Jan 13 '11
7 How to add more commands to Git Bash Shell Jan 13 '14
6 How do I change shell prompt permanently? Oct 10 '11