Using Git, how could I search for a string across all branches?

Question

Using Git, how could I search within all files in all local branches for a given string?

GitHub specific: is it possible to perform the above search across all GitHu

Answer 1

If you use @manojlds Git grep command and get an error:

-bash: /usr/bin/git: Argument list too long" 

then you should use xargs:

git rev-list --all | xargs git grep "string/regexp"

Also see How to grep (search) committed code in the Git history