title: "Illegal option" error when using find on macOS
body: <p>I am trying to list the files only with the letter "R" at the end. I used <code>find</code> as follows in macOS Terminal,</p>
  
  <pre><code>find -type f -name '*R' 
  </code></pre>
  
  <p>But I got the message saying <code>illegal option --t</code>.  </p>