title: root user has no enough space issue in ubuntu
body: <p>I am currently using ubuntu 20.04 and facing issue <code>root user has no enough space,</code>
  <a href="https://i.stack.imgur.com/Q5t0F.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Q5t0F.png" alt="enter image description here" /></a></p>
  <p>As shown in above image /dev/nvme0n1p8 has 27 GB items, How can I see those items in my disk and can remove them so that I can have enough space ?</p>