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Getting Started with PowerShell by Michael Shepard

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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:

How does that work?

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 ...

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