13. Emacs Exiting and Help
To close out of emacs
C-x C-c
If you have any open buffers, it will ask you to save it before closing out of emacs.
Confused?
C-h C-h : help menu
Undo
C-x u
As you can see Emacs has more moving parts, so the learning curve is a little steeper. In exchange though, you get a very powerful text editor.