David Crouse has published a small set of cool bash functions that prints weather, stock etc.
From the Novell Cool Solution page:
Many times I prefer to just work from the shell. I wrote some functions for my .bashrc file that I thought I would share.
The .bashrc file is a great place to put functions if your using them regularly. Alternatively, you could alias the programs but since they are small, I don't mind putting them in the .bashrc file just to keep it simple.
Here are a few of the functions I wrote.