When using git merge new branch to old branch, you just want use all ours or theirs version but be lazy to update every conflicted file.
1 | grep -lr '<<<<<<<' . | xargs git checkout --ours |
Or
1 | grep -lr '<<<<<<<' . | xargs git checkout --theirs |
Explain : these commands will find any file contains <<<<<<< string (conflicted file) and run git checkout --[side]