unity set object scale

//gets the local scale of an object
vector3 local = transform.localScale;

//sets the local scale of an object
transform.localScale = new Vector3(scaleX,scaleY,scaleZ);

//gets the world scale of the object but is read only
vector3 world = transform.lossyScale;

// This returns the scale of the object the script is attached to.
transform.localScale