It is possible to correct mistakes made in Git the with git push context (without exposing them if the mistake is found before sharing or publishing the change). If the mistake is already pushed, it is still possible to undo the changes made to the commit that introduced the mistake.

We'll also look at the reflog command and how we can use that and git fsck to recover lost information.

There is no git undo command in core Git. One of the reasons being ambiguity on what needs to be undone, for example, the last commit, the added file, and so on. If you want to undo the last commit, how should that be done? Should the changes introduced to the files by the commit be deleted? For instance, just roll back to the last known good commit, or should they be kept so that could be changed for a better commit or should the commit message simply be reworded?. In this chapter, we'll explore the possibilities to undo a commit in several ways depending on what we want to achieve. We'll explore...