1

Executing the fc builtin causes bash and other shells to fire up $FCEDIT on the last command.

Because FCEDIT is a variable, this is inherently customizable.

Is it possible to also customize the editor that starts up when I press v in the command mode of set -o vi mode?

2

It turns out, the latter command follows whatever is set in $EDITOR, e.g., doing:

EDITOR=editor
FCEDIT=editor
editor(){ vim +'set ft=sh' "$@"; }

Will cause vim, defaulting to sh syntax, to open for both v presses in command mode and for fc.

Edit: Thanks to alexander-batischev for pointing out that

EDITOR=editor
editor(){ vim +'set ft=sh' "$@"; }

is sufficient.

( Interestingly,

EDITOR="vim +'set ft=sh'"

works for v, but not for fc, hence the editor function workaround.

)

  • I didn't expect to figure it out by myself so quick, but maybe someone will find this useful (not sure if to keep it here now). – PSkocik Jun 19 '16 at 13:06
  • 1
    Actually, EDITOR is used by fc as a fallback if FCEDIT is not set, so you can get away with setting only EDITOR. – Alexander Batischev Jun 19 '16 at 13:08
  • It is useful. It shows how to tell vim that the file type is sh and thus gives a possibility of getting the right syntax highlighting etc. even though vim can't see a file name with a .sh suffix. That would not been possible without the use of that shell function I think. Maybe you could expand on the answer a bit? – Kusalananda Jun 19 '16 at 13:14
  • @AlexanderBatischev But setting EDITOR and leaving FCEDIT unset may have the side effect that other programs who invoke EDITOR may not do the right thing... – Kusalananda Jun 19 '16 at 13:21
  • @Kusalananda You're right, but there's no going around setting EDITOR. My suggestion only helps make the solution a bit shorter, that's all. – Alexander Batischev Jun 19 '16 at 14:11

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