undo pushed commit code example

Example 1: revert last push to server

git reset --hard HEAD@{1}
git push -f

Example 2: git remove commits from branch after push

git reset --hard 
So we must not reset to the commit_id that we don't want.

Then sure, we must push to remote branch:

git push --force

Example 3: git undo pushed commit

git reset 
git commit -am "commit message"
git push -f    //  git push -f origin master

Example 4: delete a pushed commit

# delete the last commit
$git reset –hard HEAD~

Example 5: github undo last pushed commit

git reset 
git commit -am "blabla"
git push -f