title: What does this match : bash regex
body: <pre><code>if [[ "$len" -lt "$MINLEN" &amp;&amp; "$line" =~ \[*\.\] ]]
  </code></pre>
  
  <p>This is from Advanced bash scripting guide "Example 10-1. Inserting a blank line between paragraphs in a text file"</p>
  
  <p>As I understand this matches "any string or a dot character". Right ?</p>