Git commands for undoing work

Command	Use
git checkout -b branch	Create a new branch with the name branch
git add filename(s)	Stage files in preparation for committing them to the repository
git commit	Save the staged changes to the repository
git checkout branch	Switch to the specified branch
git merge branch	Incorporate the commits from the branch branch into the current branch
git branch --delete	Remove a local branch
git branch -D	Remove al local branch whose commits are not incorporated elsewhere
git clone URL	Create a local copy of a remote repository
git log	Read the commit history for this branch
git reflog	Read the extended history for this branch
git checkout commit	Check out a specific commit; puts you into a detached HEAD state
git cherry-pick commit	Copy a commit from one branch to another
git reset --merge ORIG_HEAD	Remove from the current branch all commits applied during a recent merge
git checkout --filename	Restore a file that was changed, but has no yet been committed
git reset HEAD filename	Unstage a file that is currently staged so that its changes are not saved during the next commit
git reset --hard HEAD	Restore all changed files to the previously stored state
git reset commit	Unstage all of the changes that were previously committed up to the commit right before this point
git rebase --interactive commit	Edit, or squash commits since commit
git rebase --continue	After resolving a merge conflict, continue with the rebasing process
git revert commit	Unapply changes stored in the identified commit; this creates a sharing friendly reversal of history
git log --oneline --graph	Display the graphed history for this branch
git revert --mainline 1 commit	Reverse a merge commit
git branch --contains commit	List all branches that contain a specific commit object
git revert --no-commit last_commit_to_keep..newest_com	Reverse a group of commits in a single commit, instead of creating an object for every commit that is being undone
git filter-branch	Remove files from your repository permanently
git reflog expire	Forget about extended history, and use only the stored commit messages
git gc --prune=now	Run the garbage collector and ensure all noncommitted changes are removed from local memory