How to check if url is SharePoint Site or Document LIbrary Url or Item level or folder URL?

[Avian 1]

Hello 

Is there any way to check if url is SharePoint Site URL or Document Library URL or Folder Url or Item level URL using PowerShell?

I also want to check if user enter url like  https://sitename.com/sub/default.aspx or https://sitename.com/sub/homegroup.aspx or https://sitename.com/sub. I want it to return as https://sitename.com/sub using PowerShell.

Sorry If am asking basic questions.

Regards

Avian