title: Grab the filename in Unix out of full path
body: <p>I am trying to get <code>"abc.txt"</code> out of <code>/this/is/could/be/any/path/abc.txt</code> using Unix command.
  Note that <code>/this/is/could/be/any/path</code> is dynamic.</p>
  
  <p>Any idea?</p>