Unity Script templates Creation

CreateScriptFromTemplate.cs

// Place this script in 'Editor' Folder
// Create a folder named 'Templates' at the same directory level as the 'Editor' folder, but outside of it.
// Create 'ScriptName.cs.txt' in 'Templates' Folder 
// Done

using System.IO;
using UnityEditor;
using UnityEngine;


public class CreateScriptFromTemplate
{
    readonly static string templateName = "ScriptName.cs.txt";
    [MenuItem(itemName: "Assets/Create/MyTemplates/Create name Script", isValidateFunction: false)]
    public static void CreateScriptFromTemplateMethod()
    {
        string[] guids = AssetDatabase.FindAssets("CreateScriptFromTemplate t:Script");

        if (guids.Length == 0)
        {
            Debug.LogError("Class script not found: CreateScriptFromTemplate.cs");
            return;
        }

        // Get the path to the first match
        string scriptPath = AssetDatabase.GUIDToAssetPath(guids[0]);
        string directoryPath = Path.GetDirectoryName(scriptPath);

        if (directoryPath != null && directoryPath.Contains("Editor"))
        {
            string templatePath = Path.Combine(directoryPath, $"../Templates/{templateName}");
            string destName = Path.GetFileNameWithoutExtension(scriptPath);
            CreateScriptAsset(templatePath, destName);
        }
        else
        {
            Debug.LogWarning("The specified part of the path was not found in the script path.");
        }
    }
    static void CreateScriptAsset(string templatePath, string destName)
    {
#if UNITY_2019_1_OR_NEWER
        ProjectWindowUtil.CreateScriptAssetFromTemplateFile(templatePath, destName);
#else
        typeof(ProjectWindowUtil)
            .GetMethod("CreateScriptAsset", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic)
            .Invoke(null, new object[] { templatePath, destName });
#endif
    }
}

An alternative method to achieve this without using a script.

Create a folder named 'ScriptTemplates' and place it directly inside the 'Assets' directory.

In the 'ScriptTemplates' folder, you may create numerous script templates, provided they adhere to a strict naming convention. Please make sure that any script templates you create in your new ScriptTemplates folder strictly follow the prescribed naming convention.

Example :
82-MyMenuName__Create My Script-MyScriptName.cs.txt

Content Example :

    public class #SCRIPTNAME# : MonoBehaviour
    {
        private void Start()
        {

        }
    }

Note: Changes will only take effect after you restart Unity.