On 2015-05-06, Valeri Galtsev <galtsev at kicp.uchicago.edu> wrote: > > This sounds like Apple borrowed your idea for their time machine (I bet > you are doing it for much-much linger than Apple time machine exists)! rsnapshot has been using rsync with hard links for ages. http://rsnapshot.org/ --keith -- kkeller at wombat.san-francisco.ca.us