remove commit from github code example

Example 1: git cancel last commit

git reset --soft HEAD~1

Example 2: git remove commit

# Removes latest commit from the stash, KEEPS changes
git reset --soft HEAD~

# Removes latest commit from the stash, DELETES changes
git reset --hard HEAD~

Example 3: how to delete old commits in github

git reset --hard HEAD^
git push origin -f

Example 4: git undo last commit

$ git reset --soft HEAD~1

Example 5: delete commit

git checkout master
git reset --hard e3f1e37
git push --force origin master
# Then to prove it (it won't print any diff)
git diff master..origin/master