zombie_mp/Assets/Scripts/Helpers/bulkRenamer.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using EasyButtons;

public class bulkRenamer : MonoBehaviour
{
    public string find;
    public string replace;

    [Button]
    public void Rename(){
        foreach(Transform t in transform.GetComponentsInChildren<Transform>()){
            if(t.name.Contains(find)){
                t.name = t.name.Replace(find,replace);
            }
        }
        Debug.Log("It works!");
    }
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}