phantomjs/examples/stdin-stdout-stderr.js

"use strict";
var system = require('system');

system.stdout.write('Hello, system.stdout.write!');
system.stdout.writeLine('\nHello, system.stdout.writeLine!');

system.stderr.write('Hello, system.stderr.write!');
system.stderr.writeLine('\nHello, system.stderr.writeLine!');

system.stdout.writeLine('system.stdin.readLine(): ');
var line = system.stdin.readLine();
system.stdout.writeLine(JSON.stringify(line));

// This is essentially a `readAll`
system.stdout.writeLine('system.stdin.read(5): (ctrl+D to end)');
var input = system.stdin.read(5);
system.stdout.writeLine(JSON.stringify(input));

phantom.exit(0);