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- quits the current command. Generally useful for
cancelling a M-x-style command or other multi-character command
that you have started entering. When in doubt, use it.
- C-x C-c
- exits from Emacs. It prompts (in the echo area)
if there are any buffers that have not been properly saved.
- C-x u
- undoes the effects of
the last editing command. If repeated, it undoes
each of the preceding commands in reverse order (there is a limit).
This is an extremely important command; be sure to master it.
This does not undo other kinds of commands; the cursor may end up at
some rather odd places.
- redraws the screen, and positions the current line to
the center of the current window.