title: Search for a regex in a string of a TV Show filename
body: <p>I'm trying to test if a filename has a season and episod number, so far so bad:</p>
  
  <pre><code>for f in "${folderToClean}"/*.mkv
  do
    filenameWithoutExtension=`basename "${f%.*}"`
    echo "$filenameWithoutExtension file..."
  
    if [[ "$filenameWithoutExtension" =~ [sS][\d]+[Ee][\d]+ ]]; then
      echo 'pouet'
    fi
  done
  </code></pre>
  
  <p>For filenames like <code>My.TV.show.S01E02.1080p.mkv</code>, I don't get any result… Oh boy I hate regex so much…</p>