Git: Add files to the staging area

Git: Choosing files to synchronize

Git: Add files to the history

Git: Browse the history

Git Disaster Scenario 1 - Cancel an unpushed commit

Git: Push the local modifications to the remote repository

Git: Clone a remote repository

Git: Synchronize the local copy with the remote one

Git: Resolve conflicts

Git Disaster Scenario 2 - Cancel a pushed commit

Git: Using several branches

Git: Merge branches

Git Disaster Scenario 3 - Back up some code after erasing the local and remote histories