Emacs: linum mode 👎

linum-mode (obselete)

linum.el is from Emacs 23.1 (released 2009-07). It's a hack, and slows your emacs into a crawl if you have a thousand lines.

linum.el is obselete as of Emacs 29 (Released 2023-07)

Alt+x linum-mode

toggle line number in current.

Alt+x global-linum-mode

toggle line number in all buffers.

To set it permanetnly, put this in your Emacs Init File:

(global-linum-mode 1)

How to Set Linum Line Number to Start at 0

If you want line number to start at 0, put this in your Emacs Init File:

(require 'linum)
(setq linum-format
      (lambda (line)
        (propertize (number-to-string (1- line)) 'face 'linum)))

Setting line number to start at 0 is useful because some editors do that. See: bug#4274.

Author

linum-mode is written by Markus Triska. Thanks Markus. http://stud4.tuwien.ac.at/~e0225855/index.html