5.2. The -Historian’s Toolset# 5.2.1. git log - What happened when/where? 5.2.2. git diff - What changed between here and there? 5.2.3. git show - What exactly changed at a specific point? 5.2.4. git blame - When and who changed a specific line in a file? 5.2.5. git reflog - What is “my history”, i.e. what was I doing?