Change shader color for specific GameObject

Is it possible to change the color (property) of a shader for a specific game object without changing the color of the other game objects which share the same shader? How?

Yes it’s possible use a script like this:

var target : GameObject;

function Update(){
	if(Input.GetButtonDown("Jump"))
		target.transform.renderer.material.color = Color.green;
}

this just changes the color of the target object when you press spacebar. Is this what you were looking for?