This document should include examples on how to evaluate expressions and also how to alias or rename properties that are selected.

1. Expressions. You can add the result of an expression to the output of Select-Object by simply adding a { code block } to the list.

For example:

Get-Process | Select ProcessName, { $_.CPU.toString("##") }

2. You can alias or rename the property or the result of an expression by using a hash of @{l="PropertyName"; e={ "someExpression" }

For example:

Get-Process | Select @{l="CustomProcName"; e={ $_.ProcessName }}

The special @{l="Label";e={"Expression"}} format is very powerful but I am frustrated that I cannot find it documented here.

Document Details

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• ID: de5b7722-8a95-74e1-0cc3-83ccaaa2db71
• Version Independent ID: b02a39dc-b661-7dac-4482-276ca3724504
• Content: Select-Object (Microsoft.PowerShell.Utility)
• Content Source: reference/6/Microsoft.PowerShell.Utility/Select-Object.md
• Product: powershell
• Technology: powershell-cmdlets
• GitHub Login: @JamesWTruher
• Microsoft Alias: jimtru