Register an account and google search for youtube-dl Pluralsight
Get youtube-dl Pluralsight from Github:
https://gist.github.com/munim/19db42eefc65049b2119e4c6a820c415
https://gist.github.com/ivanskodje/5bd8697a64e9879f397f7ef161cf0956
https://gist.github.com/jesperorb/c14aef85735c54f479896cfa6f16a1e5
You can also check this Solution: how to download pluralsight videos never supposed to ruining author credit, so let it be as it is, read it on the main source.