title: Changing name of the video while downloading via youtube-dl
body: <p>I am trying to download a complete playlist in youtube, while downloading i want to enter serial number while downloading in front of the title of the video,</p>
  
  <p>For example if a playlist has a videos:   </p>
  
  <pre><code>A.mp4
  E.mp4
  K.mp4
  C.mp4
  B.mp4
  </code></pre>
  
  <p>I want it to be</p>
  
  <pre><code>1. A.mp4
  2. E.mp4
  3. K.mp4
  4. C.mp4
  5. B.mp4.
  </code></pre>
  
  <p>I tried commands like:      </p>
  
  <pre><code>i=0;youtube-dl -cti https://www.youtube.com/playlist?list={(Any Playlist)} -o "{{$i++}%(title)s.%(ext)s}"
  </code></pre>
  
  <p>but its giving me this error: </p>
  
  <blockquote>
    <p>youtube-dl: error: using output template conflicts with using title, video ID or auto number</p>
  </blockquote>
  
  <p>Also, Downloading the whole playlist and then renaming one by one is also not i am searching.</p>
  
  <p>Is there any command which downloads the playlist and renames each video side by side according to my wish?</p>