Yo cmd

package.json

{
  "name": "yocmd",
  "version": "0.1.0",
  "description": "Execute a command and send a yo",
  "bin": {
    "yo": "yo.js"
  },
  "main": "yo.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [
    "yo"
  ],
  "author": "Fabien Sa",
  "license": "MIT",
  "preferGlobal": "true"
}

yo.js

#!/usr/bin/env node
/*
 * This script first executes the command passed as argument, then, when the command
 * is done, it sends you a yo
 *
 * All you need to do is define the YO_USER and YO_TOKEN environment variables with:
 * YO_USER: your Yo username
 * YO_TOKEN: the Yo API token corresponding to the Yo API account you want to receive
 * Yos from, don't forget to subscribe to your accounts. (http://dev.justyo.co/)
 *
 * Uses:
 * yo ls -al
 * yo npm update -g
 * yo make
 * yo ENV_VAR=FOO make
 * ...
 *
 * Installation: npm install -g yocmd
 *
 * Original python source https://gist.github.com/ChrisJamesC/884be774f6f8725bcc84
 */

var http = require('http'),
	childProcess = require('child_process');

var arg = process.argv.slice(2).join(' ');

/**
 * Send a yo
 */
var sendYo = function() {

	// Sends a Yo to the user defined in the envrionement variable YO_USER with the
	// Yo account corresponding to the token defined in the environement variable
	// YO_TOKEN.
	var user = process.env.YO_USER;
	var token = process.env.YO_TOKEN;

	if(!user)
		console.warn('YO_USER undefined');
	if(!token)
		console.warn('YO_TOKEN undefined');

	var data = {
		'api_token': token,
		'username': user
	}

	var dataStr = require("querystring").stringify(data);

	var options = {
		host: 'api.justyo.co',
		path: '/yo',
		method: 'POST',
		headers: {
			'Content-Type': 'application/x-www-form-urlencoded',
			'Content-Length': Buffer.byteLength(dataStr)
		}
	};

	var req = http.request(options, function(res) {
		var rep = '';

		res.on('data', function(chunk) {
			rep += chunk;
		});

		res.on('end', function() {
			if(rep !== '{"result": "OK"}')
				console.warn('Yo error: ' + rep);
		});
	});

	req.write(dataStr);
	req.end();
};


var exec = childProcess.exec,
	child = exec(arg); // Execute the command

child.stdout.on('data', function(data) {
    process.stdout.write(data);
});

child.stderr.on('data', function(data) {
    process.stderr.write(data);
});

// Wait for the command execution to finish
child.on('exit', function() {
	sendYo(); // Send a yo
});