A lot of people who use Emacs bind different keys to functions and other things. From time to time I tend to forget what I bound a key to, so perhaps I am getting old. There is, however, a quick way to list out all the bindings currently available to the session of Emacs you are using.
To view a list of bindings, use the following incantation:
Alternatively, you can use the following command:
describe-bindings we can see a list of all defined keys and their binding
describe-key function will display the documentation of the
binding invoked by the key you are interested in.