Here is one way to do it: 
use strict;
use warnings;

my %h;

while (<DATA>){
  chomp;
  next if length($_) < 30;
  my ($k1, $k2,$k3, $val) =  unpack("A8 x1 A15 x1 A33 x1 A5", $_);
  $h{$k1}{$k2}{$k3} += $val;
}
for my $k1 (sort keys %h){
  print "$k1\n";
  for my $k2 ( sort keys %{ $h{$k1} }  ) {
     print "\t$k2\n";
     for my $k3 ( sort keys %{ $h{$k1}{$k2} }  ) {
        print "\t\t$k3 $h{$k1}{$k2}{$k3}\n";
     }
  }
}
__DATA__
Summary  Detial_Summary  EMC CHECK  abcdefghi AZ_checker 1 20.32
Summary  Detial_Summary  EMC CHECK  abcdefghi AZ_checker 1 24.00
Summary1 Detial_Summary1 EMC CHECK1 abcdefghi AZ_checker 1 20.59
Summary1 Detial_Summary1 EMC CHECK1 abcdefghi AZ_checker 1 24.00

[download]
prints: 
Summary
    Detial_Summary
        EMC CHECK  abcdefghi AZ_checker 1 44.32
Summary1
    Detial_Summary1
        EMC CHECK1 abcdefghi AZ_checker 1 44.59

[download]

             "I'm fairly sure if they took porn off the Internet, there'd only be one website left, and it'd be called 'Bring Back the Porn!'"
        -- Dr. Cox, Scrubs

In reply to Re: Perl Hash by NetWallah
in thread Perl Hash by Rajsai2825

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