Download YouTube playlist into a folder (using youtube-dl), merge/concatenate all videos in to one (using ffmpeg), remove all files except final full video

concat.bat

ren *.mp4 ???????.*
powershell -noexit "& "".\rmSpaceScript.ps1"""
(for %i in (*.mp4) do @echo file '%i') > fileList.txt
ffmpeg -f concat -i  fileList.txt -c copy Full.mp4
for /f %F in ('dir /b /a-d ^| findstr /vile "op.mp4"') do del "%F"

rmSpaceScript.ps1

Dir | Rename-Item -NewName { $_.Name -replace " ","" }

youtube-dl playlist download to folder.bat

youtube-dl -o "%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s" https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re
#check File names order properly
#cd <folder>