Scripting Reference
Overview: Common Operations
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Most game object manipulations are done either through the game object's Transform and/or Rigidbody. These are accessible inside behaviour scripts through the member variables transform and rigidbody respectively. So if you wanted to rotate an object 5 degrees around its Y axis every frame you could write the following:

JavaScript 
function Update() {
    transform.Rotate(0, 5, 0);
}
using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void Update() {
        transform.Rotate(0, 5, 0);
    }
}
import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Update():
        transform.Rotate(0, 5, 0)

If you want to move an object forward you would write this:

JavaScript 
function Update() {
    transform.Translate(0, 0, 2);
}
using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void Update() {
        transform.Translate(0, 0, 2);
    }
}
import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Update():
        transform.Translate(0, 0, 2)

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