Produce a sorted list of unique process names

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

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.

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