mape

// in REPL

var exec = require('child_process').exec;
var child;

var uid = 123;

child = exec('id -u root', function(error, stdout, stderr) {

	uid = parseInt(stdout, 10);

mape

var child_process = require('child_process'),
    sys = require('sys'),
    net = require('net'),
    netBinding = process.binding('net');

var fd = netBinding.socket('tcp4');
netBinding.bind(fd, 8080);
netBinding.listen(fd, 128);

for (var i = 0; i < 4; i++) {

mape

var sys   = require('sys'),
    spawn = require('child_process').spawn,
    ls    = spawn('ls', ['-lh', '/usr']);

ls.stdout.addListener('data', function (data) {
  sys.print('stdout: ' + data);
});

ls.stderr.addListener('data', function (data) {
  sys.print('stderr: ' + data);