rsnapshot: rsnapshot (Filesystem Snapshot Utility)
rsnapshot:
rsnapshot: rsnapshot is  a  filesystem  snapshot utility for making backups of
rsnapshot: local  and  remote  systems. Using  rsync  and  hard  links, it  is
rsnapshot: possible  to   keep  multiple, full  backups   instantly  available
rsnapshot: The disk space required is just a little more than the space of one
rsnapshot: full backup, plus incrementals. Depending on your configuration, it
rsnapshot: is quite possible  to  set up  in just a few  minutes. Files can be
rsnapshot: restored by the users who  own them, without  the root user getting
rsnapshot: involved. rsnapshot is written entirely in Perl.
rsnapshot: