how to get gameobject by name in unity code example

Example 1: get gameobject by name

using UnityEngine;
using System.Collections;// This returns the GameObject named Hand in one of the Scenes.public class ExampleClass : MonoBehaviour
{
    public GameObject hand;    void Example()
    {
        // This returns the GameObject named Hand.
        hand = GameObject.Find("Hand");        // This returns the GameObject named Hand.
        // Hand must not have a parent in the Hierarchy view.
        hand = GameObject.Find("/Hand");        // This returns the GameObject named Hand,
        // which is a child of Arm > Monster.
        // Monster must not have a parent in the Hierarchy view.
        hand = GameObject.Find("/Monster/Arm/Hand");        // This returns the GameObject named Hand,
        // which is a child of Arm > Monster.
        hand = GameObject.Find("Monster/Arm/Hand");
    }
}

Example 2: unity find game object by name

//tag
foreach(GameObject fooObj in GameObject.FindGameObjectsWithTag("foo"))
{
    if(fooObj.name == "bar")
    {
        //Do Something
    }
}
//isim
foreach (var obje in FindObjectsOfType(typeof(GameObject)) as GameObject[])
{
    if(obje.name == "obje")
    {
        //Do something...
    }
}