Put a script as a variable in C#?

Well the above answers are correct for the most part, but you also need to reference them with GetComponent (Unless they're public and assigned via inspector. Here's an example. Say you have a script simply named "Script1", and in Script1, you want to call another component attached to the same object as Script1, let's name this second script "Script2". Say in Script2, you have a variable you want to call. This variable must be public. For example:

 public int count = 0;

So first, I'll give you an example of what Script2 would look like:

 //Script2.cs
 
 using UnityEngine;
 using System.Collections;
 
 public class Script2 : $$anonymous$$onoBehaviour 
 {
     public int count = 0;    
 }

Now say you want to change "count" to say, 250, but you want to do this via Script1. Here's an example of how Script1 would look:

 using UnityEngine;
 using System.Collections;
 
 public class Script1 : $$anonymous$$onoBehaviour 
 {
     Script2 script2;
 
     void Start()
     {
         script2 = GetComponent<Script2>();
         script2.count = 250;
         print (script2.count);
     }
 }