Your main problem is that your are trying to create a hash by directly accessing the symbol table for hashes. This is not usually something you should do unless you know what you are doing and in fact is guarded against by using "use strict". You can do the same thing that you are trying to do by create a hash that holds your "LocalTran" types". Like This:

use strict;
use warnings;
my %LocalTrans;
my (@unix_data,@nt_data);


open LOG, "nt_data.txt" or die "Cannot open unix_data.txt $!";

while (<LOG>) {
 chomp;
 my $hashname;
 my @keysandvalues;
 my @field = split /,/, $_;
 foreach (@field) {
     my ($key, $value) = split /\s*=\s*/, $_;
     if ($key =~ /^(LocalTran)(\w*)(Number)$/) { $hashname=$value; }
     push @keysandvalues, $key;
     push @keysandvalues, $value;
  }
 %{$LocalTrans{$hashname}}=@keysandvalues;

}

foreach my $LT (keys %LocalTrans) {
 print "-+" x 90 . "\n";
 foreach my $key (keys %{$LocalTrans{$LT}) {
   print "$key => $LocalTrans{$LT}{$key}\n";
 }
}
[download]