Shell Programming and Scripting

#!/usr/bin/perl -w
use IO::Socket;

my($handle, $line, $kidpid);
$handle = IO::Socket::INET->new(
                                PeerAddr =>"64.22.229.139",
                                PeerPort =>"4321",
                                Proto=>"tcp",
                                     )
    or die "cant connect to port: $!";

$handle->autoflush(1);
die "can't fork: $!" unless defined($kidpid = fork());

if($kidpid) {
    while(defined($line = <$handle>)){
        print STDOUT $line;
    }
    kill("TERM", $kidpid);
}

else {
    while(defined ($line = <STDIN>)){
        print $handle $line;
    }

}