Git rebase interactive the last n commits

you should use

git rebase --interactive <sha1>

where <sha1> should not be the sha of the first commit you want to rewrite, but the sha of the commit just before.

if your history looks like this:

pick 43576ef last commit
...
pick 5116d42 first commit to rewrite
pick cb85072 last good commit

There are two different ways to indicate the commit on which to rebase:

git rebase -i cb85072
git rebase -i 5116d42^

where

• ^ means the commit just before.
• -i is just short for --interactive