Hi everyone, Discipulus provided the code below, adapted for my scenario. Pgm runs, but reads the entire file rather than the first 30 lines. Anyone have any ideas why? Thank you!!!

use strict;
use warnings;
use Tie::File;
use Fcntl;
use LWP::UserAgent;
use File::Slurp;

my @lines;

#Transfer URLS to a string variable;
my $file = "G:/Research/SEC filings 10K and 10Q/Data/sizefiles1.txt";

#Now fill @pages array with contents of sizefile1.txt ... how?
open (FH, "< $file") or die "Can't open $file for read: $!";
my @pages = <FH>;
close FH or die "Cannot close $file: $!";

#connect variable used with GET??
my $ua = LWP::UserAgent-> new;

#Initialize line counter;
my $read_lines=1;

#Primary loop through URLs ;
foreach my $url (@pages)    {
    my $response = $ua->get($url,':content_cb'=>\&head_only);
    print "$response\n";# should only be 30 lines, right? it's a lot m
+ore;
                }
                
#Subroutine for primary loop;                
sub head_only    {
    my ($data,$response,$protocol) = @_;
    my @lines = split "\n", $data;
    foreach my $line (@lines)    {
        if ($read_lines == 31)     {
            #reset line count'
            $read_lines = 1;
            print +("=" x 70), "\n"; #what is this?
            #die inside callback interrupt;
            die;
                               }
        else     {
            print "line $read_lines: $line\n Success Success";
        }
                    }
        }
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