Unix

How to print pretty JSON in terminal

var jsonObj = { hi: 'hello' };
console.log(JSON.stringify(jsonObj, null, 2));

How to run bash commands from NodeJS

use child_process.exec to run bash commands

var exec = require('child_process').exec;
var child;
// executes `pwd`
child = exec("pwd", function (error, stdout, stderr) {
  sys.print('stdout: ' + stdout);
  sys.print('stderr: ' + stderr);
  if (error !== null) {
    console.log('exec error: ' + error);
  }
});