Backup source of usr (No. 1)

• Backup list
• View the diff.
• View the diff current.
• View the diff for visual.
• View the backup.
• Go to usr.
  • 1 (2023-01-09 (Mon) 17:05:30)

- /usr は何の略か
--  https://blog.bitmeister.jp/?p=2516