title: How to make readable alias of a file descriptor
body: <p>I know how to make alias of a file descriptor</p>
  
  <pre><code>exec 3&gt;&amp;1  1&gt; /dev/null 
  echo "hello world" &gt;&amp;3
  </code></pre>
  
  <p>but this is not readable. Is there any way to make it readable (means instead of >&amp;3 can I write LOG or INFO or DEBUG) ?</p>