edit a commit code example
Example 1: edit last commit message
git commit --amend -m "New commit message."
Example 2: how to edit old commit message in git
# Displays a list of the last 3 commits on the current branch
$ git rebase -i HEAD~3
git commit --amend -m "New commit message."
# Displays a list of the last 3 commits on the current branch
$ git rebase -i HEAD~3