Terminal commands which make you laugh
Here are some funny (and somewhat useless) commands and Easter eggs to play with in your Linux terminal. Some of them also work in the Windows Command Line.
If you know of a funny command which I haven’t covered, please tell me in the comments.
1.) Enter “telnet towel.blinkenlights.nl“ (without quotes) and watch a full Star Wars Movie in ASCII

2.)Â Enter “% man: why did you get a divorce?” and see what happens
3.) Cowsay and Cowthink
("apt-get moo")
4) For Linux distributions using Aptitude (Ubuntu’s one of them, too)
1. Type “aptitude moo” and press ENTER
2. then enter “aptitude -v moo“
3. then enter “aptitude -v -v moo“
4. Then try “aptitude -v -v -v moo“
5. Try adding a fourth -v (“aptitude -v -v -v -v moo“)
6. add a fifth -v (“aptitude -v -v -v -v -v moo“)
7. Add a sixth -v (“aptitude -v -v -v -v -v -v”)
5) An Ubuntu Fish. If you’re using GNOME, press alt+f2 and type
"free the fish"

http://digg.com/linux_unix/Terminal_commands_which_make_you_laugh
DUGG