Re 1., if you put a -p on the mkdir it becomes a bit more powerful. I've had equivalents of that command going back to DOS batch files on a 286. I've always

Re 1., if you put a -p on the mkdir it becomes a bit more powerful. I've had equivalents of that command going back to DOS batch files on a 286. I've always called it "ad", for "add directory" (though I'll concede that's mainly a good name because it's short).