Here's another tip from my colleague Ed Wilson (the Microsoft Scripting Guy) about how to use PowerShell to
Question: You are working on a system, and want to produce a sorted list of unique process names for evaluation. How can you accomplish this task using Windows PowerShell?
Answer: Use the Get-Process cmdlet to produce the list of process objects, pipeline the output to the Sort-Object cmdlet and then to the Select-object cmdlet. Use the –unique switch from the Select-Object cmdlet to filter the list. This technique appears here:
Get-Process | Sort-Object name | Select-Object name -Unique
Mitch Tulloch is a nine-time recipient of the Microsoft Most Valuable Professional (MVP) award and a widely recognized expert on Windows administration, deployment and virtualization. For more information see http://www.mtit.com.
Ed Wilson is the bestselling author of eight books about Windows Scripting, including Windows PowerShell 3.0 Step by Step, and Windows PowerShell 3.0 First Steps. He writes a daily blog about Windows PowerShell call Hey, Scripting Guy! that is hosted on the Microsoft TechNet Script Center; for more PowerTips check out the Hey, Scripting Guy! blog.