duplicacy:tldr:dbb57

The command duplicacy prune -r ${revision} is a command used in the Duplicacy backup software. Here's a breakdown of its components:

• duplicacy: This is the executable command for the Duplicacy backup software.
• prune: This is a subcommand of Duplicacy used to remove obsolete or unnecessary backups stored on the backup storage.
• -r ${revision}: This is an option followed by a value that specifies the revision number of backups to retain. The ${revision} variable should be replaced with the actual revision number you want to specify.

So, when you run duplicacy prune -r ${revision}, the Duplicacy software will analyze the backups stored in the backup storage and remove any backups older than the specified revision number, essentially retaining only the most recent backups. The ${revision} should be replaced with the actual revision number you want to retain.