$ARGV[0] is the first argument on the command line (name of file with longer 'serial numbers'), and $ARGV[1] is the second argument on the command line (file containing the integers).

To run it:  script.pl serialnumbers.txt integers.txt

To print to a third file, add this somewhere before the second while loop:

open (my $output, ">", 'nameOfOutputFile.txt');

and change print STDERR to print $output.

I hope that works!

In reply to Re^3: extract line by mtmcc
in thread extract line by lallison

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