XKCD gets into the holiday spirit.
It’s interactive!
You’re a kitty!
Super! I like that page better than before! It’s been a few days since I had visited XKCD so I needed to catch up on previous comics. Now I don’t have to look at a lot of ads, I don’t have to look at a busy screen to find what I’m looking for… Nope, now the site is stripped down to its bare essentials - a comic and a clear set of instructions to see more comics. That - my friends - is a functional website. Ah, the good old days…
Now get off my lawn!
I cheated. 
Other words, not listed, have responses! This is like playing Zork on my old Apple II!
Very cool! Thanks for sharing.
Oh noes! I’ve been eaten by a grue. 
sudo restart
Heh
guest@xkcd:/$ make me a sandwich
What? Make it yourself.
guest@xkcd:/$ sudo make me a sandwich
Okay.
I am having way too much fun with this.
stuff I have found so far:
go west/south
look
go home
su
make me a sandwich/sudo make me a sandwich
sudo restart
help
cat
display # (# representing the comic you want to read)
you can rm license.txt and welcome.txt
Funny, the first one I tried was fuck
I love it!
Try ‘xyzzy’.
go down
what, on our first date?
I’ve gotten free shipping for their books!
guest@xkcd:/$whoami
You are Richard Stallman.
Also,
guest@xkcd:/$go west
seems to send you through the chorus of “Go West” by the Pet Shop Boys, one line at a time.
I was wondering about the purpose of that last one. And why the first half of the command was needed.
finger
kill
date
sudo rm -rf /
…then none of the commands work
Hello Joshua
Light lamp