Here is the Official Guide Video from Capcom
Ryu was one of the original Street Fighter characters and has been a main and favourite character in each instalment of the game.
Known as the Eternal Wanderer, Ryu has a range of Karate style attacks, he is super tough and has some excellent basic moves and special moves that any Street Fighter player will be familiar with.
Here is a Ryu combo guide video from VesperArcde: