http://xkcd.com/

http://memory.jeremilhau.fr/xkcd.png

sudo reboot

http://github.com/chromakode/xkcdfools/blob/master/xkcd_cli.js

everything is open sourced wow

lol try this:
make me a sandwich

then try:
sudo make me a sandwich

This is a reference back to an earlier XKCD episode:
http://xkcd.com/149/

The source code reveals all the hidden functionality (and there is a lot).

Roger
I knew that people that read the comic would try that any way :P

Yeah it's surprising how much there is in there. I hope there's still a way to access this after today!

sudo display 149

Yey! We can keep using it!
http://xkcd.com/unixkcd/