title: sudo: 3 incorrect password attempts Error
body: <p><img src="https://i.stack.imgur.com/oHURM.png" alt="screenshot of terminal when using sudo"></p>
  
  <p>I am getting this error whenever I use sudo on terminal, due to which I am unable to edit any file (permission issues) and moreover am unable to update my system. Is there any specific solution without re-installing system?</p>