On Thu, Jul 15, 2010 at 21:11:25 +0100 (+0100), Keith Edmunds wrote: > However, Chris is right: you cannot *know* that two files are the same > unless you compare them, byte by byte. If hashes are good enough for you, > just backup the hashes and save lots of time and diskspace!
My understanding on this point is that in fact a hash _is_ good enough - or rather the odds of a hash not being good enough are sufficiently low (cf corruption on hard disks etc) that it's irrevevant. For instance see: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=122945 Adrian -- bitcube.co.uk - Expert Linux infrastructure consultancy Puppet, Debian, Red Hat, Ubuntu, CentOS -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------