#!/bin/perl

$delimiter = ",";
$i=0;
while(<>)
{
 chomp;
 ....(parsing of other info)
 ...
 if ($_ =~ /^Lot Code/){
    @lotCode[$i] = $_;
    @lotCode[$i]=~ s/^Lot Code(\s+)(\w+)/$2/e;
    $i++;
    }
open OUTPUT, ">>data.txt";

}
for ($j=0; $j < $i; $j++)
{
  print OUTPUT "@subject[$j];@failed[$j];@monthi[$j]/@dayi[$j]/@yeari[$j];@routerval[$j];" .
        "@tag[$j];@montho[$j]/@dayo[$j]/@yearo[$j];@lotCode[$j];@commentso[$j]\n";
  print "@subject[$j];@failed[$j];@monthi[$j]/@dayi[$j]/@yeari[$j];@routerval[$j];" .
        "@tag[$j];@montho[$j]/@dayo[$j]/@yearo[$j];@lotCode[$j];@commentso[$j]\n";
}