for my $i(0..999){                                                                                                                                                        
  my $tot_length = 
    `grep -f test_set_$i $ARGV[2] | awk '{cnt += \$2}END{printf "%d", cnt}'`;    
  `grep -f test_set_$i $results[0] 
    | awk '{print \$1}' | sed 's/>>//'| sort | uniq -c
    | awk '{print \$1*1000/$tot_length,\$2}' > out`;
  tie @{$files{'first'}[$i]},'Tie::File', "out";    
  `grep -f test_set_$i $results[1] | awk -F" : " '{print \$2}' 
    | sort | uniq -c| awk '{print \$1*1000/$tot_length,\$2}' > out`;
  tie @{$files{'second'}[$i]},'Tie::File', "out";    
  `grep -f test_set_$i $results[2] | sed 's/ targets sites//'
    | sed 's/.*>//' 
    | awk -F": " '{cnt[\$1]+=\$2}
      END{for (x in cnt){print cnt[x]*1000/$tot_length,x}}' > out`;
  tie @{$files{'third'}[$i]},'Tie::File',"out";    
  `grep -f test_set_$i $results[3] | awk '{print \$2}' | sort 
    | uniq -c| awk '{print \$1*1000/$tot_length,\$2}' > out`;
  tie @{$files{'fourth'}[$i]},'Tie::File',"out";    
  `grep -f test_set_$i $results[4] | awk '{print \$2}' | sort 
    | uniq -c| awk '{print \$1*1000/$tot_length,\$2}' > out`;
  tie @{$files{'fifth'}[$i]},'Tie::File',"out";    
}