From StrategyWiki, the free strategy guide and walkthrough wiki

Prince of Persia's controls are broadly separated into two types: free-running, which makes up the majority of the gameplay, and combat, when you are close to an enemy.

PC	PlayStation 3	Xbox 360	Free-running	Combat
W A S D			Movement
			Camera
Space			Jump, Wallrun, Roofrun	Acrobatic attack
R			Extend wallrun/roofrun	Grab, Throw
			N/A	Sword attack
E			Compass, Co-op jump, Activate Power Plate	Elika attack
T	/	/	Talk to Elika	N/A
	/	/	Drop, Grip-fall	Block, Deflect
Esc			Pause menu
Tab			Map screen	N/A

For more details on combat controls, see the Combos page.