quick reference for common branching and merging ops.

Ian Bogost doesnt like your Facebook games. He doesnt care how much money you are making. He doesnt care if your mom plays them. He finds them troubled and tragic. But instead of mounting mere invective, in mid-2010 he decided to make a social game to test his theory of them. The result is COW CLICKER

buntu / Linux file permissions and special mode bits work. Learn how to change these permissions using the chmod command. Find out how default permissions for new files are configured via a user's umask value.

... in detail.

GPIO beginner's play

basic rules to help stave off the repeated doubts on whether you have enough mana