(un)bind key's for beginners (or the good Emacs way)
reddit / emacs

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wWA5RnA4n2P3w2WvfHq · 2022-04-06 14:17

- `kill-buffer` is bind to `C-x k`
 - 'kill-buffer-and-window` is bind to `C-x 4 0`

I am quit new to Emacs 27. Searching around how to modify key bindings
gives me a lot of possible solutions. The question is not how to do it
but how to do it the right emacs way.

 - `kill-buffer` should be unbind
 - 'kill-buffer-and-window` should bind to `C-x k`

And what does happen if someone tries to "override" a key-binding
(before unbinding it) or when using one keybinding for two different
functions? Do I need to take care of this or does Emacs this for me?

What I tried so far is
```Lisp
(global-unset-key (kbd "C-x k"))
(global-set-key (kbd "C-x k") 'kill-buffer-and-window)
```
Seems that this works. But I am not sure if it is a good way and if
this has some side effects.

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sylvain_soliman · 2022-04-06 14:34

This seems ok, but I don't think you need the `global-unset-key`.

From the docs
(https://www.gnu.org/software/emacs/manual/html_node/elisp/Key-
Binding-Commands.html) its main use would be to avoid a _prefix_
binding issue.

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7890yuiop · 2022-04-06 14:45

As a tangent and a primer, I highly recommend reading all of this:

https://www.masteringemacs.org/article/mastering-key-bindings-emacs

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00-11 · 2022-04-06 15:35

Ask Emacs about [Key Binding Commands](https://www.gnu.org/software/em
acs/manual/html_node/elisp/Key-Binding-Commands.html).

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mwzx · 2022-04-06 17:38

This right here is the beauty of Emacs: because of its self-
documenting aspect, you can ask Emacs about everything.