- [x] Clean up the messages sent to the console or send them to the debug or error streams (e.g. `Write-Debug` or `Write-Error`)
- [x] Rotate log files
- [x] Suppress output of some commands
-- [ ] Add some comments to the source code
-- [ ] Allow multiple backups for a day
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+- [x] Allow multiple backups for a day
+- [x] Add some comments to the source code
+- [x] Update README
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