How does that work?

Knowing what commands you can execute is a big step, but it doesn't help much if you don't know how you can use them. Again, PowerShell is here to help you. To see a quick hint of how to use a cmdlet, write the cmdlet name followed by -?. The beginning of this output for Get-Service is shown as follows:

Even this brief help, which was truncated to fit on the page, shows a brief synopsis of the cmdlet and the syntax to call it, including the possible parameters and their types. The rest of the display shows a longer description of the cmdlet, a list of the related topics, and some instructions about getting more help about Get-Service:

In the Remarks section, we can see that there's a cmdlet called Get-Help (the second of the "big 3" cmdlets) that allows us to view more extensive help in PowerShell. The first type of extra help we can see is the examples. The example output begins with the name and synopsis of the cmdlet and is followed, in the...