ERROR: Unsupported URL: https://www.youtube.com/

[blikoor]

Description
Youtube-dl is unable to download any videos or live stream videos from YouTube.

To Reproduce

1. Create batch file (dlstream.bat) containing the following:
   for /f "delims=" %%a in ('youtube-dl -v -f best --hls-prefer-ffmpeg -g https://www.youtube.com/watch?v=9Auq9mYxFEE') do (ffmpeg -i %%a -c copy download.ts)

2. Run batch file from console in Windows 10.

Expected behavior
Download live stream video from YouTube and saving data to download.ts. This has been tested on Twitch live streams videos and works there as expected, but youtube-dl is unable to download from https:///www.youtube.com. This doesn't work reliably on Facebook either, there are a lot of time code errors during download, resulting in video freezes and the video/audio are out of sync.

Additional context
I have enabled verbose logging to provide some debug information below:
C:\Users\username\Videos>dlstream

C:\Users\username\Videos>for /F "delims=" %a in ('youtube-dl -v -f best --hls-prefer-ffmpeg -g https://www.youtube.com/watch?v 9Auq9mYxFEE') do (ffmpeg -i %a -c copy download.ts )
[debug] System config: []
[debug] User config: ['-o', '%userprofile%Videos']
[debug] Custom config: []
[debug] Command-line args: ['-v', '-f', 'best', '--hls-prefer-ffmpeg', '-g', 'https://www.youtube.com/watch?v', '9Auq9mYxFEE']
[debug] Encodings: locale cp1252, fs mbcs, out cp1252, pref cp1252
[debug] youtube-dl version 2020.09.20
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.19041
[debug] exe versions: ffmpeg 2020-09-20-git-ef29e5bf42-full_build-www.gyan.dev, ffprobe 2020-09-20-git-ef29e5bf42-full_build-www.gyan.dev
[debug] Proxy map: {}
WARNING: Falling back on generic information extractor.
ERROR: Unsupported URL: https://www.youtube.com/
Traceback (most recent call last):
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpksi3o1r1\build\youtube_dl\YoutubeDL.py", line 797, in extract_info
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpksi3o1r1\build\youtube_dl\extractor\common.py", line 532, in extract
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpksi3o1r1\build\youtube_dl\extractor\generic.py", line 3382, in _real_extract
youtube_dl.utils.UnsupportedError: Unsupported URL: https://www.youtube.com/

[dstftw]

[debug] Command-line args: ['-v', '-f', 'best', '--hls-prefer-ffmpeg', '-g', 'https://www.youtube.com/watch?v', '9Auq9mYxFEE']
https://www.youtube.com/watch?v

= in batch must be escaped with ^.

[blikoor]

Escaping does not work, this error is the result: "delims^= was unexpected at this time"

So I simply used youtube-dl without the batch (youtube-dl -v https://www.youtube.com/watch?v=9Auq9mYxFEE) and it worked. I'm unsure how to fix the batch file for a little automation later on, but that is okay.

Thank you for the reply
Kind regards