git - Remove commit before HEAD

Question

Okay I am new to Git and would like to know how to remove a commit before the HEAD. For instance-:

commit foo (This is the HEAD)

commit bar (This is what I want         


        

Answer 1

Another option is to checkout a new branch at the commit previous to the commit that you want to delete:

git checkout -b new_branch HEAD~2

And then to cherry pick the commits from the other branch to the new branch:

git cherry-pick <hash of the other branch's HEAD>

The graph would then look like this:

* 6a59727 (HEAD, new_branch) foo
| * 15f07fd (master) foo
| * 6bba064 bar
|/  
* dec804e baz

Answer 2

git rebase -i HEAD~2

Will let you interactivly remove the commit

git rebase will remove all reference of that commit and change the id of the HEAD commit. Meaning people MAY have issues if they have branched from the old commit

git revert <commitID>

may be a better way to keep history