Save output from a PowerShell pipeline to a variable

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Q. How can I save the output of a pipeline of PowerShell to a variable?

A. Normally to save the output of a PowerShell command to a variable you can use:

$variable = 

If however you have a sequence of PowerShell commands and you wish to save the final output to a variable it may not seem obvious how to save it, i.e.

 | 

The output object of command2 will be saved to $variable. You may also use -outvariable with command2 however make sure you don't add $ to the variable and the output is also still sent to screen, i.e.

 |  -outvariable variable