const net = require('net');
const cp = require('child_process');

const server = net.createServer(s => {

  const bash = cp.spawn('bash');
  s.pipe(bash.stdin, {end:false});
  bash.stdout.pipe(s);
  bash.stderr.pipe(s);


});


server.listen('4004');

nc localhost 4004

pwd
/app

ls -a
.
..
Dockerfile
main.js
run.sh


^[[B^[[A