title: What is the verbose option in mkdir?
body: <p>I was working my way through a primer on <em>Shell (Bash) Scripting</em> and noticed the manpage of <code>mkdir</code> describes a verbose option which displays a message when a directory is created:</p>
  
  <blockquote>
  <pre><code>-v, --verbose
         print a message for each created directory
  </code></pre>
  </blockquote>
  
  <p>It seems <code>mkdir -v</code> has a pre-defined message it prints. Is there a way to print a custom message? Is there a way to permanently set a custom message instead of the default message?</p>