[binwiederhier]

I eventually have to figure out what ! does. In my she'll it always leads to errors about some events and whatnot. I shall Google and find out ;-)

[binwiederhier]

Oh wow ! is quite powerful. Some of these bang commands are quite questionable, but hey... Like !12 runs the 12th command from the bash history. That's seems super dangerous to me.

[tannercollin]

Here's a good collection of tricks like that:

https://github.com/jlevy/the-art-of-command-line