Did you actually read your whole thread?

There's only one command listed (rm -rf) that will get you into any trouble, and I'm certain qwerty never actually wanted or expected anyone to go skipping off and run it. That's an old joke.


Interest in whether or not there's protection in place for that command is also completely valid. Besides that, I can't think of a single worse command for a 'noob' to run, so it seems to me like its a good thing someone brought it up in here.. part of learning about the 'dos' of XTerm should definitely be learning the 'don'ts', since you can definitely cause some havoc in short time (BIG don't: don't run anything unless you know what it's going to do).

..granted discussion of that dominates the replies currently, and you didn't get a ton of other useful feedback, but I'm not sure that's any reason to be discouraged -- you did set out to learn something about terminal after all.

(FWIW, ifconfig is perfectly safe)