use strict;
use warnings;

my @sites=qw/
              www.yahoo.com
              www.google.com
              www.comcast.com
            /;
my @bad_log;
my @good_log;

my %bad_hash = ();
foreach my $bad_site (@sites) {
  $bad_hash{$bad_site} = 1;
}

while (my $line = <DATA>) {
  my $www = (split / /,$line)[5];
  $www =~ s/---*//;
  if (exists $bad_hash{$www}) {
    push(@bad_log, $line);
  } else {
    push(@good_log, $line);
  }
}

print "\nBad lines are:\n";
foreach (@bad_log) { print; }
print "\nGood lines are:\n";
foreach (@good_log) { print; }

__DATA__
X456 TV-yes DB-no 123.12.23.45 dealio3 www.google.com-------- FX-yes d53 Y-03
X123 TV-yes DB-yes 34.154.43.21 dealio1 www.ask.com-------- FX-no d01 Y-03
X412 TV-no DB-no 192.365.25.23 rayovac2 www.microsoft.com--- FX-yes d13 Y-07