The difference between
but very, very important.
I love inside jokes, even ones in computer languages I don't know (which is most of them). Still, I also get a certain joy from explaining inside jokes (it's NOT like explaining jokes that are supposed to be obvious...)
So I wish you'd share the joy with illiterates like me... WHAT THE KNAUSS IS HE TALKING ABOUT?!?
I'm not going to test it to make sure, but I think Greg was trying to delete all of his error logs and deleted all of his files instead. As an expert at command-line based destruction, I sympathize.