Hi Monks, Can someone tell me what is Hash of Hash table? Can someone give me an example of that? I am trying to see if I can applay that when I try to have tow values as one key . I mean if I have a line in my file that look like this  one tow three four five six and I want to have one and tow as key for the rest of the line. right now I will have to have tow hashes as follow: 
%one;
%tow;
 while (<INPUT>) {
     chomp(my @line = split/\s+/);
         push @{$one{$r[0]}}, [ @line[1..$#r] ];
         push @{$tow{$r[1]}}, [ @line[2..$#r] ];
         }

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I need to some how merge it into one hash . Maybe if I understand Hash of Hash , I will be able to see if my approach is possible. Thanks all

In reply to Hash of Hash by Anonymous Monk

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