title: how to remove a file named "?" in linux?
body: <p>I created a file named "?", is anybody know how to delete it?</p>
  
  <p>It seems that ? is a special character in linux, I use Redhat as my OS.</p>
  
  <p>I have already tried</p>
  
  <pre><code>    rm ?
      rm "?"
      rm \?
  </code></pre>
  
  <p>They all failed and I got the error indicated that the file doesn't exist.</p>