Create a screenshot of any URL using phantomjs (headless webkit)

screenshot.js

//
// Example usage: phantomjs screenshot.js http://yahoo.com /tmp/yahoo.png
//

var system = require('system');
var url = system.args[1];
var filename = system.args[2];
var page = new WebPage();

page.open(url, function (status) {
  page.render(filename);
  console.log(filename)
  phantom.exit();
});