Couple of things:
An array reference starts at 0 and your reference object while, it is the third object in the list is going to be at location 2 not 3 in the array. Second you have a redundant check there and the "defined's" can be removed. The entire conditional statement can be simplified to this: 
   if ($elements[2]) {
      print ("Parsing Error: Line $z\n");
      if ($refList{$elements[2]}) {
         print ("Already Present in file\n");
      } else {
         print "No match in reference file\n";
         print (NEWALIGN $alignment->{$z}."\n");
         print (NEWACC $elements[2]."\n");
      }
   }

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In reply to Re: If statement problem with hash values by Elijah
in thread If statement problem with hash values by MonkPaul

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