11.2 Documentation for a Key
The most basic C-h options are C-h c
describe-key-briefly) and C-h k (
C-h c key displays in the echo area the name of the command
that key is bound to. For example, C-h c C-f displays
‘forward-char’. Since command names are chosen to describe what
the commands do, this is a good way to get a very brief description of
what key does.
C-h k key is similar but gives more information: it
displays the documentation string of the command as well as its name.
This is too big for the echo area, so a window is used for the display.
C-h c and C-h k work for any sort of key sequences,
including function keys and mouse events.
C-h w command <RET> tells you what keys are bound to
command. It displays a list of the keys in the echo area. If it
says the command is not on any key, you must use M-x to run it.
C-h w runs the command