slackbuilds_ponce/system/rdup
..
rdup.info
rdup.SlackBuild
README
slack-desc

rdup is a utility inspired by rsync and the plan9 way of doing things.
rdup itself does not backup anything. It only prints a list of files
that are changed, or all files in case of a null dump. It also handles
files that are removed, allowing for correct incremental backups.