Fast diff command for large files?
Jan.Grant at bristol.ac.uk
Sat Nov 5 09:26:24 GMT 2005
On Fri, 4 Nov 2005, Kirk Strauser wrote:
> <thinking out loud>
> I wonder if rsync could be modified to output its patches rather than
> silently applying them to a target file. It seems to be pretty good at
> comparing large files quickly...
More thinking out loud: since these are database dumps, they're
order-independent. So, sort the files into a predictable lexical order,
then a diff is a linear operation over tonight's file versus last
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44 (0)117 3317661 http://ioctl.org/jan/
Rereleasing dolphins into the wild since 1998.
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