I am an idiot who deserves public shame

gistfile1.txt

: curtis@sirius ~/code/ImageJ/imglib (master)
find . -exec sed -i '' -e 's/^M//' {} \;
sed: .: in-place editing only works for regular files
sed: ./.git: in-place editing only works for regular files
sed: ./.git/hooks: in-place editing only works for regular files
sed: ./.git/info: in-place editing only works for regular files
sed: ./.git/logs: in-place editing only works for regular files
sed: ./.git/logs/refs: in-place editing only works for regular files
sed: ./.git/logs/refs/heads: in-place editing only works for regular files
sed: ./.git/logs/refs/remotes: in-place editing only works for regular files
sed: ./.git/logs/refs/remotes/fiji: in-place editing only works for regular files
sed: ./.git/logs/refs/remotes/github: in-place editing only works for regular files
sed: ./.git/logs/refs/remotes/origin: in-place editing only works for regular files
sed: ./.git/logs/refs/remotes/pacific: in-place editing only works for regular files
sed: ./.git/objects: in-place editing only works for regular files
sed: ./.git/objects/00: in-place editing only works for regular files
sed: ./.git/objects/01: in-place editing only works for regular files
sed: ./.git/objects/02: in-place editing only works for regular files
sed: ./.git/objects/03: in-place editing only works for regular files
sed: ./.git/objects/04: in-place editing only works for regular files
sed: ./.git/objects/05: in-place editing only works for regular files
sed: ./.git/objects/06: in-place editing only works for regular files
sed: ./.git/objects/07: in-place editing only works for regular files
sed: ./.git/objects/08: in-place editing only works for regular files
^C
: curtis@sirius ~/code/ImageJ/imglib (master)
git status
error: bad index file sha1 signature
fatal: index file corrupt

I am confused, What is wrong with this?

So doing sed on .git accidentally will break that local git repo it looks like.

Yep. When shell scripting, make sure you only loop over the files you intend! One way here would have been find * instead of find ., since the * glob does not match files starting with .. (And sorry @MissValeska for the six-year delay in reply—I didn't notice your earlier comment till @MichaelCurrin's comment just now!)

Okay thanks I'll add to my notes.

Btw the in place editing regular files error is the reason I got here. I know now to use sed on files only using find -type f

I just added this section today while learning about sed and find

https://github.com/MichaelCurrin/cheatsheets/blob/master/cheatsheets/shell/substitute_text.md#sed-and-find