title: Bash :what is the syntax to create one spaces with sed
body: <p>what is the syntax to create one spaces with sed </p>
  
  <pre><code>sed -e 's/Épisode \([0-9][^0-9]\)/Ep0\1/g' \
  </code></pre>
  
  <p>I want to create one space <strong>Ep01 to Ep 01</strong> </p>
  
  <p>ty :)</p>