How tf do you enable line numbering?
reddit / emacs

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CherrrySzczery · 2022-01-25 17:53

What I tried:
```
(setq line-number-mode t)

(setq global-linum-mode t)

(global-linum-mode t)
```
clicking in menu enable line numbers and save options.
I have emacs 27.2

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pathemata · 2022-01-25 18:15

`M-x` (alt key with x) then `global-linum-mode`.

Or

`(global-linum-mode)` go to the end of the expression and type `C-x e`
to call `eval-last-sexp`.

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crawsphi · 2022-01-25 18:18

As of Emacs 26 the best way is the `display-line-numbers-mode`, which
can be activated for all buffers with the `global-display-line-
numbers-mode` command.

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xwfwuerbt0o3z · 2022-01-25 18:20

Your second option in \`.emacs.d/init.el\` should work.

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weevyl · 2022-01-25 18:21

I don't need everything to have line numbers, so I just added it as a
hook for each mode where I wanted line numbering:

    (add-hook 'xxx-mode-hook 'linum-mode)

where xxx-mode should be replaced with the actual mode name. Added
that to my init.el file and all was good.

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JDRiverRun · 2022-01-25 18:59

If you don't want line numbers on all the time, for space-saving
considerations, `consult-goto-line` is wonderful.  It temporarily
shows line numbers and gives a *preview* of the line you are
selecting.

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T_Verron · 2022-01-26 10:30

If you have emacs 26 or more recent, display-line-numbers-mode has
much better performance than linum-mode.

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centzon400 · 2022-01-26 13:20

I snagged this from Prot's config:

    (use-package emacs
      :config
      (defun prot/toggle-line-numbers ()
        "Toggles the display of line numbers.  Applies to all
buffers."
        (interactive)
        (if (bound-and-true-p display-line-numbers-mode)
            (display-line-numbers-mode -1)
          (display-line-numbers-mode)))
      :bind (("<f7>" . prot/toggle-line-numbers)))

Thanks, Prot!

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weevyl · 2022-01-26 17:02

Thanks for the tip! I will give it a try.

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oantolin · 2022-01-27 01:48

Here's how you can answer these questions directly in Emacs: run `M-x
apropos RET line numbers RET`, the listing includes `display-line-
numbers` which sounds promising. Pressing `RET` on `display-line-
numbers` or clicking it with the mouse pops up a help buffer
describing it. The help buffer says "You can customize this variable"
and "customize" is a link; clicking the link or pressing `RET` on it
lets you configure the line number display.

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junglee33 · 2022-01-27 04:31

yup ! fwiw, my mode line displays both line and column numbers (nicely
tucked away without cluttering the buffer with useless information)
when screen real-estate is an issue f.e. on a latop etc. i definitely
don't want that to be there...