On Wed, Jan 13, 2010 at 09:53, David Cantrell <da...@cantrell.org.uk> wrote: > On Wed, Jan 13, 2010 at 01:12:28PM +0000, Dermot wrote: > >> I am using it in a perl class but if I could system(`fdupes`) that >> might be preferable. I'll try building the sources and see what >> happens. Failing that I'll have to fallback to slurping and SHA or >> MD5. > > Other hashing algorithms exist and are faster but more prone to > inadvertant collisions. If you've got a lot of data to compare, I'd > use one of them (eg one of the variations on a CRC) and then only > bring out the big SHA guns when that finds a collision.
Or cmp ;-)