Working with Cmdlets and Scripts
Windows PowerShell introduces the concept of a cmdlet (pronounced commandlet). A cmdlet is the smallest unit of functionality in Windows PowerShell. You can think of a cmdlet as a built-in command. Rather than being highly complex, most cmdlets are quite simple and have a small set of associated properties.
You use cmdlets the same way you use any other commands and utilities. Cmdlet names are not case sensitive. This means you can use a combination of both uppercase and lowercase characters. After starting Windows PowerShell, you can enter the name of the cmdlet at the prompt, and it will run in much the same way as a command-line command.
For ease of reference, cmdlets are named using verb-noun pairs. ...