title: How to use zgrep and regular expression?
body: <p>I'm trying to do some research in a <code>.gz</code> file so I found out I should use <code>zcat / zgrep</code> now after a bit of research I can't figure out how to use a regex with <code>zgrep</code></p>
  
  <p>I tried to do it like this <code>zgrep '[\s\S]{10,}' a.gz</code> but nothing comes out even if there are string of minimum 10 characters in the file.</p>
  
  <p>So how could I use <code>zgrep</code> to display string of minimum 10 characters ?</p>