Can't javascript already do [this][1]?

    const thrush = (value, func, ...funcs) =>
        func ? thrush(func(value), ...funcs) : value;

    // no new syntax required
    thrush(
      envars,
      Object.entries,
      x => x.map(([key, val]) => `${key}=${val}`),
      x => x.join(' '),
      x => chalk.dim('$ ' + x, 'node', args.join(' ')),
      console.log);

[1]: http://www.davidgoffredo.com/thrush.html