Here it goes much proper way to view: :)

open(OUTFILE, ">", "check_result.txt") or die ("unable to write output
+: $!");

my @url = ('www.yahoo.com', 'www.google.com' );    #for check Ping & c
+heck TCP

#check Ping

print OUTFILE "*Ping Result*\n";

use Net::Ping;

$p = Net::Ping->new("syn");

if ($p->ping($url2[0]))
{
    print OUTFILE "$url2[0] is alive. \n";
}
else
{
    print OUTFILE "$url2[0] is not alive. \n";
}
if ($p->ping($url2[1]))
{
    print OUTFILE "$url2[1] is alive. \n\n";
}
else
{
    print OUTFILE "$url2[1] is not alive. \n\n";
}

#check TCP Result

use strict;
use Socket;
use Time::HiRes qw( gettimeofday );
use Net::hostent;

print OUTFILE "*TCP Result*\n";

my $timeout = 3;

my $hostname = ($url2[0]);
my $hostname1 = ($url2[1]);
my $portnumber = '80';
my $portnumber1 = '80';
my $host = shift || $hostname;
my $host1 = shift || $hostname1;
my $port = shift || $portnumber;
my $port1 = shift || $portnumber1;
my $proto = getprotobyname('tcp');
my $iaddr = inet_aton($host);
my $iaddr1 = inet_aton($host1);
my $paddr = sockaddr_in($port, $iaddr);
my $paddr1 = sockaddr_in($port1, $iaddr1);

socket(SOCKET, PF_INET, SOCK_STREAM, $proto) || die "socket: $!";     
+#for casino.sbobet.com

eval {
  local $SIG{ALRM} = sub { die "timeout" };
  alarm($timeout);
  connect(SOCKET, $paddr) || error();
  alarm(0);
};

if ($^P) {
  close SOCKET || die "close: $!";
  print OUTFILE "$hostname is NOT listening on tcp port $portnumber.\n
+";
}
else {
  close SOCKET || die "close: $!";
  print OUTFILE "$hostname is listening on tcp port $portnumber.";
  my ($t02, $t12, $startTime2);
    $startTime2 = gettimeofday();
    connect(SOCK, $paddr);
    $t02 = gettimeofday() - $startTime2;
    close (SOCK);
    $t02 = gettimeofday() - $startTime2,
    printf OUTFILE ("  avg:%.8f", $t02);
    print OUTFILE ("ms\n");
}

socket(SOCKET, PF_INET, SOCK_STREAM, $proto) || die "socket: $!";   #f
+or casino1.sbobet.com

eval {
  local $SIG{ALRM} = sub { die "timeout" };
  alarm($timeout);
  connect(SOCKET, $paddr1) || error();
  alarm(0);
};

if ($ARGV) {
  close SOCKET || die "close: $!";
  print OUTFILE "$hostname1 is NOT listening on tcp port $portnumber1.
+\n";
}
else {
  close SOCKET || die "close: $!";
  print OUTFILE "$hostname1 is listening on tcp port $portnumber1.";
  my ($t02, $t12, $startTime2);
    $startTime2 = gettimeofday();
    connect(SOCK, $paddr1);
    $t02 = gettimeofday() - $startTime2;
    close (SOCK);
    $t02 = gettimeofday() - $startTime2,
    printf OUTFILE ("  avg:%.8f", $t02);
    print OUTFILE ("ms");
}
[download]

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