reflog - Your Undo Safety Net

git reflog - nothing is ever truly lost

Scenario: You ran git reset --hard and your commits vanished. Panic? No. Git secretly records every move HEAD makes. reflog is the time machine that gets them back.

git reflog lists everywhere HEAD has been - even commits no branch points to anymore.

$ git reflog
a1b2c3d HEAD@{0}: reset: moving to HEAD~2
9f8e7d6 HEAD@{1}: commit: Add the feature I thought I lost
$ git reset --hard 9f8e7d6     # recover it

Command	Recovers
`git reflog`	History of where HEAD has been
`git reset --hard <hash>`	Jump back to a lost commit
`git checkout -b saved <hash>`	Rescue a lost commit onto a new branch

Goal: Internalize this: as long as you had committed the work, git reflog can almost always bring it back - even after a bad reset or a deleted branch. Git keeps these entries for ~90 days.

Tip: The one thing reflog can't save: changes you never committed at all. Commit early, commit often - then you're always recoverable.