** frowns, in an "I'm concentrating sort of way **

** shuffles to the bathroom to check for blond roots **

I know this is going to be something really, blatantly obvious and I'm just missing it because I just staggered in from my overnight at work, but what does "rm -rf" mean?

Hi Anne

rm -rf is the *nix command to (r) recursively remove all files. If the file is a directory, it removes the entire directory and all its contents, including subdirectories. (f) removes write protected files without prompting.

Basically - it is a sure way to totally "nuke" the system.