Emacs & Wgrep
April 11, 2023
So I just discovered
wgrep mode of a grep buffer in Emacs and it’s incredible.
I often use
projectile-ripgrep if I need to find something in the project I’m working on.
But if I wanted to rename some variables or strings that I grepped I had to go and manually update them or use something like
But turns out there is
wgrep mode that is available from
*rg*) buffer or from
In case of you
ripgrep you just press letter
e and now you can edit anything you want. Then you press
C-x C-s and now all the changes
are made. Amazing.
Here is an example. Let’s try to find and replace
projectile- string in this blog:
Here is what was found (image is clickable)
now I press
e and I can edit the buffer. It says this in the message area:
Now I changed few occurrences of the
project- and pressed
C-x C-s and now those two files are edited without me even visiting them.
You can save all unsaved buffers with
Incredible discovery. I’m going to use it all the time now.
I’m not sure though what kind of feature is this. It’s not a package that I had to install. It’s just there and it works.
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