How can I use rgrep more effectively?
reddit / emacs

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getting-rained-on · 2022-05-15 00:38

I often use `rgrep` to find stuff in my project - typically stuff I
want to rename project wide. Sometimes also just to figure out where
stuff is being used.

In the first case, I find this a little awkward. I do an `rgrep`, hit
enter on each entry, make a change, etc etc. This is very slow, and
can result in buffers getting left open.  What I'd love to do is have
`rgrep` behave something like `occur` mode's (`M-s o`) `occur-edit-
mode` (accessed from an `occur` buffer with `e`).

Is something like that available in grep results? How do _you_ use
rgrep more effectively?

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dvdgc13 · 2022-05-15 00:54

Does [wgrep](https://www.reddit.com/r/emacs/comments/ce0557/emacs_edit
ing_multiple_files_with_grep_wgrep/) offer what you are looking for?

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BigRiverBlues · 2022-05-15 01:19

When you go into dired mode on a directory, there are regex find and
replace commands you can run on all the files or a  subset of the
files, I think. Dont remember exactly, but might be worth a look

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getting-rained-on · 2022-05-15 01:31

Yes I believe it does! I was using doom with the older ido mode as
that was what I had been using prior to moving to doom. It looks like
the ivy module has a lot of nice things over ido - namely an
integrated wgrep with the projectile search. It looks like this will
do exactly what I need, thanks for the tip.

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hvis · 2022-05-15 01:36

You can also try `C-x p g` for `project-find-regexp` followed by `r`
in the resulting buffer to query-replace in matches.