text: var express = require('express');
  var spawn = require('child_process').spawn;
  
  var app = express();
  
  app.get('/ps', function(req, res) {
    ps = spawn('ps', ['aux']);
  
    ps.stdout.pipe(res);
  });
  
  app.listen(3000, function() {
    console.log('Server listening on port 3000');
  });
  