#!/usr/bin/env perl use IO::Socket; $socket = IO::Socket::INET->new(PeerAddr => "127.0.0.1", PeerPort => 1235, Proto => "tcp", Type => SOCK_STREAM); my $message = join " ", @ARGV; # Send the length of the first argument as four bytes. $socket->send(pack("L", length($message))); # Send the first argument as a string. $socket->send($message);