Replay the last N git commits on a different branch

I accidentally made 10 commits on branch "testing" when I intended to commit them on branch "master". The other commits on the "testing" branch are garbage, so I don't want to merge it with "master". Instead, I just want to replay the last 10 commits on master.

What is the use of rebase?

Rebase is one of two Git utilities that specializes in integrating changes from one branch onto another. The other change integration utility is git merge . Merge is always a forward moving change record. Alternatively, rebase has powerful history rewriting features.

Rebase should do it.

git rebase -p --onto master testing~10 testing

This will copy the last ten commits on testing to master and make that the new testing (the old testing will be an orphan). Then you can merge master to testing as a fast-forward.