git reset --hard

`git reset --hard` is a command used in Git version control system to reset the current branch and the working directory to the state of the last commit. This command discards all changes made to tracked files in the working directory since the last commit and replaces them with the content of the last commit. It can be useful when you want to undo all the changes you made to the code and start fresh from the last commit. However, it is important to note that this command is destructive and should be used with caution as it can permanently erase any uncommitted changes.