Git

Rebase

When you are on a branch, you get

 git rebase master 

Squash feature branch

This squashes all the commits in to one.

 git merge --squash feature 

and then you need to commit the new squashed changes.

 get commit -m "squashed changes merged in."

Squash Commits

This squashes the last 3 commits.

 git reset --soft HEAD~3
 git commit -m 'new commit message'