rayCastSample.cs

RaycastHit hit

void Start () {
}

void Update () {

	bool found = Physics.Raycast(transform.position, transform.forward, hit, 7);
 	
 	if(!found) return;
 	
	string name = hit.transform.name; 
		
	if(name!=null && name=='Cube') {
		var targetObj = GameObject.Find(name);
		targetObj.transform.Rotate(0, Time.deltaTime*50, 0);
	}
}