Changing name of the video while downloading via youtube-dl

Question

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,

For example if a playlist has a videos:

A.mp4
E.mp4
K.mp4
C.mp4
B.mp4

I want it to be

1. A.mp4
2. E.mp4
3. K.mp4
4. C.mp4
5. B.mp4.

I tried commands like:

i=0;youtube-dl -cti https://www.youtube.com/playlist?list={(Any Playlist)} -o "{{$i++}%(title)s.%(ext)s}"

but its giving me this error:

youtube-dl: error: using output template conflicts with using title, video ID or auto number

Also, Downloading the whole playlist and then renaming one by one is also not i am searching.

Is there any command which downloads the playlist and renames each video side by side according to my wish?

Answer 1

Sometimes I had headache to rename and sort the files based on the order.

So to add auto-numbering, use -A like,

youtube-dl https://www.youtube.com/playlist?list=PLOU2XLYxmsILe6_eGvDN3GyiodoV3qNSC -A

Or to keep playlist index,

youtube-dl -o '%(playlist_index)s. %(title)s.%(ext)s' https://www.youtube.com/playlist?list=PLOU2XLYxmsILe6_eGvDN3GyiodoV3qNSC

This will add nice numbering to the downloaded files.

And if you are downloading files which is not in playlist, you can add numbers manually to the file,

youtube-dl -o "1-%(uploader)s%(title)s.%(ext)s" https://youtu.be/862r3XS2YB0

Here I have manually added 1- to the filename while downloading.