Run your first command
Open PowerShell and type Get-Host
You will get the installed version details along with some other details. Type $PSVersionTable to get all the details of PS versions.
So, you might have already observed that PowerShell uses a verb-noun pair of the names if cmdlets and for their derived .NET classes. The verb part of the name identifies the action that the command performs. The noun part of the name identifies the entity on which the action is performed. For example, the Get-Command cmdlet retrieves all the commands that are registered in PowerShell.
Locate PowerShell commands
Type Get-Command in the PowerShell console to get list of all the cmdlets available on the server or system. There will be a huge list. You can use wild characters to get a precise list. like the following.