David Goussev DavidGoussev

#Node - Processes To launch an external shell command or executable file you can use the child_process. Apart from command line arguments and environment variables you cannot communicate with the process using child_process.exec. However you can use child_process.spawn to create a more integrated processes.

##Executing Child Processes

###To launch an external shell command

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

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>

	<script id="jsbin-javascript">

	define(["require", "exports"], function (require, exports) {
	/**
	* Helper to use the Command Line Interface (CLI) easily with both Windows and Unix environments.
	* Requires underscore or lodash as global through "_".
	*/
	var Cli = (function () {
	function Cli() {
	}
	/**
	* Execute a CLI command.

	app.controller('MainCtrl', ['$scope', 'PresenceService', function ($scope, PresenceService) {
	$scope.totalViewers = 0;

	$scope.$on('onOnlineUser', function(){
	$scope.$apply(function () {
	$scope.totalViewers = PresenceService.getOnlineUserCount();
	});
	});
	}]);

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>
	<p id="text"></p>
	<script>

	git branch -m old_branch new_branch # Rename branch locally
	git push origin :old_branch # Delete the old branch
	git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote