[GUIDE] How to change GRUB bootloader timeout on any Linux 2020

Penetration testers and computer science professionals must have installed Dual boot Kali Linux or any other linux on his working laptops or Desktop. While booting to Linux you guys must have familiar with interface called GRUB Bootloader where you have to choose your Operating System you want to bootin in given period of time (5 sec as default timeout). In this guide we’ll be going to show you how you can change this Default GRUB bootloader timeout and increase it as much as you want to keep. Let’s start reading below.