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Asked: 2026-05-16T06:35:04+00:00

I’ve seen the following a lot in PowerShell, but what does it do exactly?

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I’ve seen the following a lot in PowerShell, but what does it do exactly?

$_
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  1. Editorial Team

    This is the variable for the current value in the pipe line, which is called $PSItem in Powershell 3 and newer. 

    1,2,3 | %{ write-host $_ }

    or

    1,2,3 | %{ write-host $PSItem }

    For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current value.

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