I have a code as: 
 #!/usr/bin/env perl
use strict;
use warnings;

my %seen;

$/="";
while (<>) {
chomp;
    my ( $key, $value ) = split('\t', $_);
   
   my @lines = split /\n/, $key;
   my $key1 = $lines[1];
   
    
    push( @{ $seen{$key1} }, $value );
   

}


foreach my $key1 ( sort keys %seen ) {

   print join( "\t", $key, @{ $seen{$key1} } );
    }

[download]
The output I am getting is not printing the $key. How can we print $key outside the while loop without foreach..Is it possible??

In reply to preserving hash value outside the loop by Anonymous Monk

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