title: Sed help: add regex in find and replace in html files
body: <p>I wanna to find and replace a tag with inner html and replace it with something.
  I use this command but it has problem in regex.</p>
  
  <pre><code>find pages* -type f -exec sed -i -e 's/\(&lt;div class=\"IASBS_Date_en\"&gt;\)[.]\(&lt;\/div&gt;\)/Sallam Karim/g' {} \;
  </code></pre>
  
  <p>what should I write instead of <code>[.]</code>
  Thanks.</p>