For those who love to moo, you could try cowsay also. install the cowsay package.
Cowsay (or cowthink) will turn text into happy ASCII cows, with speech (or thought) balloons. If you don't like cows, ASCII art is available to replace it with some other creatures (Tux, the BSD daemon, dragons, and a plethora of animals, from a turkey to an elephant in a snake). -- l...@iitd - http://tinyurl.com/ycueutm
