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Full Discussion: Help with md5 in PERL
Top Forums Shell Programming and Scripting Help with md5 in PERL Post 302433521 by pludi on Wednesday 30th of June 2010 12:58:00 AM
Old 06-30-2010
  1. I believe the command is called md5sum, not md5
  2. $NF prints the last field, which usually is the name of the file the sum belongs to
  3. Take a look at Digest::MD5 and save yourself some trouble calling external programs
 

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IO::Digest(3)						User Contributed Perl Documentation					     IO::Digest(3)

NAME
IO::Digest - Calculate digests while reading or writing SYNOPSIS
use IO::Digest; # Get a Digest::MD5 object that takes input while $fh being written or read my $fh; my $iod = IO::Digest->new ($fh, 'MD5'); print $fh "fooo"; print $iod->hexdigest DESCRIPTION
This module allows you to calculate digests while reading or writing file handles. This avoids the case you need to reread the same content to compute the digests after written a file. TEST COVERAGE
----------------------------------- ------ ------ ------ ------ ------ ------ File stmt branch cond sub time total ----------------------------------- ------ ------ ------ ------ ------ ------ blib/lib/IO/Digest.pm 100.0 n/a n/a 100.0 100.0 100.0 Total 100.0 n/a n/a 100.0 100.0 100.0 ----------------------------------- ------ ------ ------ ------ ------ ------ AUTHORS
Chia-liang Kao <clkao@clkao.org> COPYRIGHT
Copyright 2004 by Chia-liang Kao <clkao@clkao.org>. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <http://www.perl.com/perl/misc/Artistic.html> perl v5.18.2 2013-02-16 IO::Digest(3)
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