I think the better way to accomplish what you're trying to do would be to do what my other answer suggests. But to execute commands on the command line as your questions suggests, you want to use child_process.exec. For example:
var exec = require('child_process').exec, child; child = exec('node test2.js <<args>>'{{args}}', function (error, stdout, stderr) { console.log('stdout: ' + stdout); console.log('stderr: ' + stderr); if (error !== null) { console.log('exec error: ' + error); } });