[Nottingham] backup commands

Camilo Mesias camilo at mesias.co.uk
Mon Aug 6 13:19:37 BST 2007

I'd guess that sync ensures that the data is written, but might not
ensure that a read is performed on the actual hardware (instead of the
data coming from a cache).

umount and eject would be the belt and braces approach!

Also cmp would be faster and leaner than diff, and would cope with
binary files better (diff is really for text files)


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