I will be the first to admit that I am really just learning how to tap into the power of my shell environment and to be honest, I've spent way to many hours reading man pages and figuring out how to do some really neat things that help my automate my workflow and system administration. Mostly these are just basic tasks like my Simple MySQL Backup and Deleting Invisible Resource Files scripts. But in all seriousness, when you get right down to using a UNIX-based operating system, you cannot escape using the shell environment. This is a good thing, its your friend, and getting your feet wet sooner than later is a good idea.