How to stop a script in c#

i want that after the closet goes forward the script ends so that when you press e again the drawer won't move, ho can i do this, the sctip s this one:

using UnityEngine; using System.Collections;

public class Drawer : MonoBehaviour {

 public bool inTrigger = false;
 public GameObject Closet;

 void OnTriggerEnter (Collider Other){
     if(Other.tag == "Player"){
         inTrigger = true;
     }
 }
 void OnTriggerExit(Collider Other){
     if(Other.tag == "Player"){
         inTrigger = false;
     }
 }
 void OnGUI (){
     if(inTrigger == true){
         GUI.Box(new Rect (500,300,150,25),"Press E to open");
     }
 }
 void Update (){
         if(inTrigger == true){
         DrawerMovement();
         }
     }
 void DrawerMovement(){
     if(Input.GetKeyDown(KeyCode.E)){
         transform.position = Closet.transform.position - Vector3.left* 1f;
     }
 }

}