You might also check out BioPerl's tRNAScan module:

use Bio::Tools::tRNAscanSE;

   my $parser = Bio::Tools::tRNAscanSE->new(-file => 'result.tRNAscanS
+E');

   # parse the results
   while( my $gene = $parser->next_prediction ) {

       @exon_arr = $gene->get_seqFeatures();

   }
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Ikegami's excellent posts can help you work with the data itself to do the item by item analysis. Learning BioPerl can be a very good thing...