xcaptain xcaptain - 2 years ago 106
Linux Question

Change the default find-grep command in emacs

When I execute

command in emacs, I got
find . -type f -exec grep -nH -e {} +
, since I'm using fish shell as the default shell, to make this command work I have to execute
find . -type f -exec grep -nH -e \{\} +

I tried to modify the emacs source code, below are my changes:

line 12669:
If `exec-plus' use `find -exec \{\} +'.

line 12669:
If `exec-plus' use `find -exec \{\} +'.

But it doesn't make any sense, when I execute
still shows
find . -type f -exec grep -nH -e {} +
. Can anyone tell me where I am doing wrong or how should I figure out this?

Answer Source

The text you changed does not look like executable code. Probably you just changed a doc string (actually, a bit of googling reveals that this is in the documentation string for grep-find-use-xargs). But Emacs is eminently customizable; all you have to do is to set the value of grep-find-template to something which is more suitable for you personally, in your own .emacs/init.el or similar.

(setq grep-find-template
      "find . <X> -type f <F> -exec grep <C> -nH -e <R> \\{\\} +")

See the manual for further documentation and, of course, the built-in documentation (ctrl-h v grep-find-template RET).

The actual source code is in http://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/progmodes/grep.el#n174

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