How can I get the keyboard shortcut for a given emacs command?

Is there any function to do this? something like the inverse of开发者_运维问答 "describe-key"?

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Try the command where-is, for example:

M-x where-is find-file

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You can try C-h w (it's bound to the where-is command).

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Type M-x describe-function or C-h f then type in the function name you want to know about. It will display the key bindings associated to it.

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In Lugaru's Epsilon Emacs, it is "describe-command".