RSnapshot uses rsync, but it's a bit more than a "front end" to rsync. It organises backups in a space-efficient way, again by utilising hard links. It's nice for running hourly/daily/weekly/monthly snapshots. The time period is arbitrary: if you wanted retain a fortnightly or quarterly backup, that would be trivial. With RSnapshot, typically the last hourly backup of the day becomes that day's 'daily' backup, and so on. That means that if you create a file at 14:37 and delete it at 18:02, it'll be in some hourly snapshots, but won't make it into the daily snapshot. Of course, most backup systems run overnight, and in that case your deleted file wouldn't make it in to any backup. -- Linux Tips: https://www.tiger-computing.co.uk/category/techtips/
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