text: #!/usr/bin/env node
  'use strict';
  
  // https://www.hacksparrow.com/difference-between-spawn-and-exec-of-node-js-child_process.html
  
  console.log('Hello world !')
  
  ///////////////////////////////////////////////////////
  
  const spawnSync = require('child_process').spawnSync
  
  ///////////////////////////////////////////////////////
  
  setInterval(() => console.log("Event loop is alive !"), 1000)
  
  const executable = 'sleep'
  const params = [ '10' ]
  const options = {
  	timeout: 5000,
  	env: process.env,
  	encoding: 'utf8'
  }
  
  console.log(`Spawn : spawning ${executable}`, params);
  const result = spawnSync(executable, params, options);
  console.log(`spawnSync : done`)
  