disable colours in Emacs

• https://www.emacswiki.org/emacs/AngryFruitSalad
• http://catb.org/jargon/html/A/angry-fruit-salad.html
• https://en.wiktionary.org/wiki/angry_fruit_salad
• http://www.askbjoernhansen.com/2002/09/05/unix_tip_disable_colors_in_ema.html
• https://unix.stackexchange.com/questions/108257/how-do-i-stop-emacs-from-colouring-the-text-of-the-file-i-am-editing#108272

To disable colouring in your current buffer, toggle font-lock-mode off with this command (my ad-hoc solution):

M-x font-lock-mode

To disable font-lock-mode “permanently” – see above!

You may still find coloured remainders – but it’s not as bad any longer.

Continued:

One day I suddenly noticed what should have been obvious from the beginning (in that environment):

$ echo $TERM
xterm-256color

Now it was clear how to disable colours effectively in a non-GUI Emacs:

$ env TERM=xterm emacs