Chapter4/4.6_AdvancedFunctions/4.6.2_Parameter/ParameterValueFromPipelineByPropertyName.ps1
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function Get-DirectorySize { [CmdletBinding()] param( [parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string[]]$LiteralPath, [parameter(ValueFromPipelineByPropertyName = $true)] [int]$OverSize ) process { foreach ($path in $LiteralPath) { $measure = Get-ChildItem -LiteralPath $path -Recurse -Force -File | Measure-Object -Sum Length $output = [pscustomobject]@{ Path = $path FileCount = $measure.Count Sum = $measure.Sum OverSize = $measure.Sum -ge $OverSize } Write-Output $output } } } |