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in reply to Re^2: scalable duplicate file remover
in thread scalable duplicate file remover
- From the documentation for Digest::SHA1:
$sha1->addfile($io_handle)
[ SNIP ]
In most cases you want to make sure that the $io_handle is in "binmode" before you pass it as argument to the addfile() method.
- OK. :-)
- Typeglobs and Filehandles
How do I pass filehandles between subroutines?
How can I use a filehandle indirectly?
- $sha1->digest returns a digest in binary form while $sha1->hexdigest is in hexadecimal form. For example:
$ perl -le'
my $digest = "\x02\x07\xFA\x78";
my $hex_digest = "0207FA78";
print for length( $digest ), length( $hex_digest );
'
4
8
- Update: reset() may or may not speed things up. You would have to compare both methods with Benchmark to be sure.
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