I don’t like memorizing a whole lot of emacs keyboard short cuts. I use smex mode, which allows me to type M-x and then the function name. I prefer that. So here is a list of the functions that I use.
|??||default||C-g||keyboard-quit (If you pressed a command by mistake,
this will undo it)
You can find these by typing M-x describe-key and then doing the key sequence.
Someone at the University of Houston has an excellent page with common emacs functions and their key bindings.