if you really want to go nuts -<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Util-linux" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Util-linux</a><p>read all the pages, explore all the man pages, then experiment and learn.