Based upon your specifications you probably want something like this: 
use warnings;
use strict;

open LABELS, '<', 'labellist.txt' or die "I could not get at labellist
+.txt as input: $!";

while ( <LABELS> ) {
    my ( $lotnumber, $product ) = /^(\w\d{7})\t(\w{6,9})$/ or next;
    print "^XA^LH30,30^FO110,65^A0,N,100^FD$lotnumber^FS^FO150,160^BY2
+,3.0^B3N,N,125,N,N^FD$lotnumber^FS^FO75,375^A0,N,50,30^FD$product^FS^
+FO30,425^BY2,2.0^B3N,N,50,N,N^FD$product^FS^XZ\n"; 
    }

close LABELS;

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In reply to Re: Parse data from a line to get 2 variables by jwkrahn
in thread Parse data from a line to get 2 variables by Sunnmann

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