I was running out of storage space on my machine, so I started to search for things to remove using Grand Perspective. Some of the big files were inside Git repositories, or rather, inside the .git directory of those repositories. I decided it was time to run the Git garbage collector on them, all of them.

I wrote this little script:

#!/usr/bin/env bash

echo "Gitgcing $1"
cd "$1"

and with this line:

find . -name ".git" -type d -exec gitgc "{}" ";"

run in my home directory, I got all my repos gc’ed.