title: Linux shell scripting: hex number to binary string
body: <p>I am looking for some easy way in shell script for converting hex number into sequence of 0 and 1 characters.</p>
  
  <p>Example:</p>
  
  <pre><code>5F -&gt; "01011111"
  </code></pre>
  
  <p>Is there any command or easy method for accomplish it or should I write some switch for it?</p>