Hello All,
I represent part of the PowerShell community and I am going to add my two cents on this:
I can recommend the following resources:
- PowerShell in a Month of Lunches: https://www.manning.com/books/learn-windows-powershell-in-a-month-of-lunches-third-edition.
- PluralSight: https://www.pluralsight.com/paths/windows-powershell-essentials.
- PSKoans: https://github.com/vexx32/PSKoans.
- PowerShell Conference Books Volumes 1,2 & 3. https://leanpub.com/psconfbook2, https://leanpub.com/powershell-conference-bookhttps://leanpub.com/powershell-conference-book https://leanpub.com/psconfbook3) Theses books serves as a 'conference in a book', and as a deep guide resource.
If you are wanting to test your PowerShell skills for the time being, head over to pluralsight which has an excellent test that you can do for free:
https://www.pluralsight.com/product/skill-iq
Moving forward, I am editor-in-chief for the new PowerShell book. This book will serve as a textbook resource/ lesson material for uni's/ employees to further develop skills and define best practices.