Get a unique list of process names

by Mitch Tulloch [Published on 10 July 2014 / Last Updated on 10 July 2014]

Learn how to use Windows PowerShell to produce a unique list of process names.

Here's a tip from my colleague Ed Wilson (the Microsoft Scripting Guy) about how to use PowerShell to

Question: : You are looking at processes on your system, and want a listing that is unique by name. How can you do this using Windows PowerShell?

Answer: Use the get-process cmdlet to get the listing of processes, sort the list by name and then pipeline the objects to the Get-Unique cmdlet. The following illustrates this technique:

Get-process | sort-object name | Get-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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The Author — Mitch Tulloch

Mitch Tulloch is a well-known expert on Windows Server administration and cloud computing technologies. He has published over a thousand articles on information technology topics and has written, contributed to or been series editor for over 50 books.

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