PowerTip: Use PowerShell to Start a Bunch of Processes

The Scripting Guys

Dr Scripto

Summary: Learn how to start a bunch of processes by using Windows PowerShell.           

Hey, Scripting Guy! Question How can I use Windows PowerShell to start a whole bunch of processes for testing purposes on one of my systems?

Hey, Scripting Guy! Answer Use a Windows PowerShell range operator, such as http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg9/04/hsg-02-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg7-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg0-03.jpg9/04/questsoftware.png9/04/a-sm.jpg9/04/q-sm.jpg..http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg9/04/hsg-02-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg7-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg0-03.jpg9/04/questsoftware.png9/04/a-sm.jpg9/04/q-sm.jpg0, to specify how many processes you want to create.
           Then pipe the results to the Foreach-Object cmdlet, and in the script block, use Start-Process to create
           the commands you need. Here is an example:

http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg9/04/hsg-02-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg7-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg0-03.jpg9/04/questsoftware.png9/04/a-sm.jpg9/04/q-sm.jpg..http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg9/04/hsg-02-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg7-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg0-03.jpg9/04/questsoftware.png9/04/a-sm.jpg9/04/q-sm.jpg0 | Foreach {Start-Process notepad}

You can simplify this command by using % for Foreach, and by simply calling the executable:

http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg9/04/hsg-02-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg7-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg0-03.jpg9/04/questsoftware.png9/04/a-sm.jpg9/04/q-sm.jpg..http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg9/04/hsg-02-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg7-http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg9/04/hsg_perf4_0http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/20http://devblogs.microsoft.com/scripting/wp-content/uploads/sites/29/2019/04/2010_scriptgames_badge1.png9/04/hsg_perf3_02.jpg.jpg0-03.jpg9/04/questsoftware.png9/04/a-sm.jpg9/04/q-sm.jpg0 | % { notepad}

To check how many processes you created, use the Get-Process cmdlet:

(Get-Process notepad).count

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