XKCD Unix

So of all the April Fools Day nonsense on the interwebs, xkcd had my favorite: a unix version of their website. It's still available here: http://xkcd.com/unixkcd/

After playing around with it I found a lot of commands that work, a number of inside nerd jokes, and a few easter eggs.

All of the following commands seem to get unique responses (yes, my wife and I played around for a while testing these out...):

pwd

help
man
halp
finger
vi
emacs
sudo
sudo make me a sandwich
date
more
find

whoami
bash
echo

The following gives you an easter egg game:
find kitty

This sends you to a chat room:

irc

EDIT: Updated from comments here and elsewhere, these also work:
curl
kill
sudo shutdown -h now
apt-get
su
uname (try this one a few times)
kill
use the force luke
use the source luke
make me a sandwich
make love
asl (try this a few times too)
nano
locate ninja
locate raptor
locate problem
locate keys
cheat
i read the source
moo
ping
man cat
man next
man last
dist-upgrade (this one is platform dependent)
enable time travel

And entering the Konami code (up up down down left right left right B A) several times is somewhat amusing.

Anyway, well done xkcd. Usually the April Fools Day stuff is annoying, but this was pretty well done...