title: grep for a specific pattern anywhere in the file
body: <p>is it possible to grep for any instance in a file in which ; is not pre and succeeded by any other character? </p>
  
  <pre><code> ;
  </code></pre>
  
  <p>The problem is it does not neccessarily imply that there has to be a space to the left and right but also that ; could be the only character in a line. 
  Can I somehow check whether there is more than a single ; per line in the file?
  How would I do that with grep?</p>