While reading about Joe Grossberg’s making it in the Mac world, I noticed the “ALT-.” bash shortcut (he mentions it in his post).
the fact that doing ALT-. at the bash command-line doesn’t behave normally. Instead of repeating the last argument of the previous command, it outputs some characters.
That was a new one for me. Needless to say, that one second later I was Googling for bash shortcuts, and another second later, I was scrolling through this excellent reference.