Node's REPL (Read-Eval-Print-Loop) represents the Node shell.

//client.js
let    net    =    require("net");
let    sock    =    net.connect(8080);
process.stdin.pipe(sock);
sock.pipe(process.stdout);

//server.js
let    repl    =    require("repl")
let    net    =    require("net")
net.createServer((socket)    =>    {
        repl
        .start({
                prompt:    ">    ",
                input:    socket,
                output:    socket,
                terminal:    true
        }).on('exit',    ()    =>    {
                socket.end();
        })
}).listen(8080);