simple queue in node

gistfile1.js

var async = require('async')
  , childProcess = require('child_process');

var commands = ['ls -l', 'echo hello'];

async.forEachSeries(commands, function(command, cb) {
  childProcess.exec(command, function(err, stdout, stderr) {
    if (!err) {
      console.log(stdout);
      console.log(stderr);
      cb();
    } else {
      console.log(err);
      cb();
    }
  })
}, function(err) {
  console.log('all done');
})