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PS C:\script> $a
Caption              DeviceID            Model                Partitions  Size
Intel Raid 1 Volume  \\.\PHYSICALDRIVE0  Intel Raid 1 Volume  2           456116451840
Intel Raid 1 Volume  \\.\PHYSICALDRIVE1  Intel Raid 1 Volume  1           1900409817600

How can I only list the DeviceID column? Desired output:

\\.\PHYSICALDRIVE0
\\.\PHYSICALDRIVE1
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  • 2
    How did you obtain whatever's in $a? Commented May 22, 2020 at 14:52
  • 3
    $a | Select-Object -ExpandProperty DeviceId probably. Commented May 22, 2020 at 15:04
  • 1
    Probably, yes. Hard to say :) Commented May 22, 2020 at 15:22

1 Answer 1

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Assuming that $a is a valid PSObject, you can achieve this using either the -Property parameter or -ExpandProperty parameter of Select-Object cmdlet.

The difference being, using -Property parameter means that you're just specifying a Property to select. That's it. But if you're using -ExpandProperty parameter, you'll be specifying a property to select as well as prompting PowerShell to make an attempt to expand that property (in case the property itself is an Array or an Object).

Since in your use case, the property DeviceId is a normal NoteProperty, you can simply use something like this:

$a | Select-Object -Property DeviceId
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