Want to access a boolean from another script. C#

if (aredKey == true){
redKey.enabled = true;
}

That is from a script called two.cs

This is one.cs which contains aredKey (the bool)

public bool aredKey = false;

I want to use that same bool from one.cs in two.cs

How do I do this?

Please no links to another site.

Thanks

public class … : MonoBehaviour {
public Doors d; //Use the class name in the other script

   void Something() {
      if( d.aredkey ) {
         ...
      }
   } 
}