How to run emacs function from the shell

Question

I would like to:

run an emacs function from the shell
in a standard emacs session (configured as if it was run in an interactive session)
with a certain file in the active buffer

So I would like to do something like:

emacs --function org-beamer-export-to-pdf --file my-presentation.org

Bonus points if I can run it with the emacsclient, connecting to an already running emacs server.

score 7 · Accepted Answer · answered Sep 07 '16 at 18:41

7

This should do what you want. If you don't have the file open, you may need to replace the switch-to-buffer function to something that opens the file.

emacsclient -e '(progn (switch-to-buffer "my-presentation.org") (org-beamer-export-to-pdf))'

answered Sep 07 '16 at 18:41

Justin Abrahms

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Great, I had to use `find-file` instead of `switch-to-buffer` – blueFast Sep 08 '16 at 05:33
Should I do somethings as follows: `emacsclient -e '(progn (switch-to-buffer "foo.py"))'` – alper May 10 '20 at 11:45
@alper Would that be identical to `emacsclient foo.py`? – AstroFloyd Dec 28 '22 at 13:22
@AstroFloyd Yes sir it will – alper Dec 28 '22 at 17:24

How to run emacs function from the shell

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