#!/usr/bin/perl

use strict;
use warnings;
use autodie;

sub usage
{
    my $err = shift and select STDERR;
    print "usage: extract.pl firstline lastline filename\n";
    exit $err;
    } # usage

use Getopt::Long qw(:config bundling nopermute);
GetOptions (
    "help|?" => sub { usage (0); },
    ) or usage (1);

my ($start, $stop, $file) = @ARGV;
-s $file && $start =~ m/^[0-9]+$/ && $stop =~ m/^[0-9]+$/ && $start <= $stop or usage (1);

open my $fh, "<", $file;
while (<$fh>) {
    $. >= $start && $. <= $stop and print "$.: $_";
    }
close $fh;