what are minimum cmdlets needs to know in powershell and kindly mention with small examples

See the following: https://technet.microsoft.com/en-us/scriptcenter/dd793612.aspx

https://social.technet.microsoft.com/Forums/en-US/218f10d5-c91b-48c8-871e-8853b81b2055/vb-logic-or-net-frame-work-logic?forum=winserverpowershell
https://social.technet.microsoft.com/Forums/en-US/2f7ad2e4-874f-46fb-a558-0f0a307a39f7/definitions-of-key-words-with-examples?forum=winserverpowershell
https://social.technet.microsoft.com/Forums/en-US/019b6d6e-3ad1-43f9-a343-e2ef06ca90a1/gethelp-getprocess-showwindow?forum=winserverpowershell
https://social.technet.microsoft.com/Forums/en-US/478843c9-e133-44ed-b089-2613ab2df6d5/what-is-function-with-small-examples?forum=winserverpowershell
https://social.technet.microsoft.com/Forums/en-US/c9c99b43-1273-4c64-ae47-7c26475b6043/difference-types-of-loops-are-available-in-powershell?forum=winserverpowershell
https://social.technet.microsoft.com/Forums/en-US/c9c99b43-1273-4c64-ae47-7c26475b6043/difference-types-of-loops-are-available-in-powershell?forum=winserverpowershell