1ur so stoopid u dum its eeeeeeez to use getcomponent jkust doo
2
3Getcomponent<*A component to get*>().*the thing you need in the component* *100/= true/= false/ color.red

1 //First script 
2public class Enemy : MonoBehaviour{
3  public int health = 10;
4  public void saySomething(){
5    Debug.Log("Hi, i am an enemy.");
6  } 
7}
8//Second script
9//There is one thing though,
10//if the script is located on another gameobject,
11//which will be most likely, you have to somehow
12//find that gameobject first. There are many ways of
13//doing it, via raycast, collision,
14//trigger, find by tag, find by gameobject etc.
15//But i will use the simplest way to understand,
16//that is declaring public GameObject in player script,
17//which contains Enemy, and later you just drag and drop the
18//gameobject in the inspector.
19public class Player : MonoBehaviour{
20  //Drag and drop gameobject with script Enemy in inspector
21  GameObject enemyGameObject;
22  void Start(){       
23    //We get Enemy component - script
24    //from public gameobject which contains this script
25    Enemy enemyScript = enemyGameObject.GetComponent<Enemy>();
26    //This will debug Enemy health is: 10  
27    Debug.Log("Enemy health is:"+ enemyScript.health)  
28      //This will debug "Hi, i am an enemy." 
29      enemyScript.saySomething();  
30  } 
31}

1using UnityEngine;
2
3public class TryGetComponentExample : MonoBehaviour
4{
5    void Start()
6    {
7    	// Since Unity  2019.2 you can use TryGetComponent to check
8        // if an object has a component, it will not allocate GC in 
9        // the editor if the object doesn't have one.
10        if (TryGetComponent(out Rigidbody rigidFound))
11        {
12        	// Deactivate rigidbody
13            rigidFound.enabled = false;
14        }
15        
16		// For versions below 2019.2 you can do it this way:
17        // Create a variable
18        Rigidbody rigidFound = GetComponent<Rigidbody>();
19        
20        // If the 'Rigidbody' exist in the gameobject
21        if(rigidFound != null)
22        {
23        	// Deactivate rigidbody
24            rigidFound.enabled = false;
25        }
26	}
27}

1public Gameobject a; //this allows you to drag an object into a slot in the unity software
2private transform b; //this is a variable that can only be assigned and altered in script
3
4b = a.GetComponent<Transform>(); //this finds the transform component of 'a' and assigns that to 'b'