Mohtalim

Holy crap, xkcd wins the internet (again!)
http://www.xkcd.com/

The commands can be found in here. I'll parse it later, unless someone can link something that already has.
http://www.xkcd.com/unixkcd/xkcd_cli_all.js

Wow, it supports:

• C-a (beginning-of-line)
• C-e (end-of-line)
• up-arrow, down-arrow history
• has a subset of adventure (encodes state into an int and two booleans (alive and lamp), comes complete with grue)

• Code: Select all

  find kitten
  sudo
  apt-get
  irc

One-liners to follow.

Also, try the commands 'asl' for one of a set of random replies and 'sudo apt-get moo' for an ascii art cow. (Yes, I've been reading through the js)

For the rest of your april fool's day browsing, here's a pretty comprehensive listing:

http://aprilfoolsdayontheweb.com/

I particularly like the google search result response time units. Ex: femtogalactic years

(Not totally relevant, but still entertaining...)

boom de-yada, boom de-yada,
boom de-yada, boom de-yada

i love your suff'ring,
i love to engineer,
i love transistors,
i love your sister,
i love this video: http://www.vimeo.com/7151435