It is not clear at all what problem you are facing... your code could be simplified, but it is mostly ok. Are you getting any errors? What is it that you want help with? In the meantime, here are a few code-cleanup suggestions 

# chop the inputs to remove the trailing \n
my $l = <STDIN>;
chop($l);
.. and so on..
# use while to loop over the lines in the file
open MAPFILE "$sdtfile" or die;
while (<MAPFILE>) {
  my ($date, $time, $lot, $waf, $ts, $sstep, $machine, $prog, $product
+, $plnfile, $striping) = split(/,/, $_);
  if (..) {
    # rest of the program
  }
}

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In reply to Re: parsing data from file by punkish
in thread parsing data from file by Sunnmann

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