Powershell Ordnergröße abfragen Hauptordner Unterordner

$directory="c:\temp"  
$listdir= Get-ChildItem -force $directory -Directory -Recurse -ErrorAction SilentlyContinue | % { $_.fullname }
$results=@()
foreach ($line in $listdir){
$o= Get-ChildItem –force $line –Recurse -ErrorAction SilentlyContinue | measure Length -s -ErrorAction SilentlyContinue | Select-Object -Property @{name='Directory';expression={$line}}, @{n="Size(GB)";e={[math]::Round((($_.Sum)/1GB),2)}}  
$results+=$o
}
$results+= Get-ChildItem –force $directory –Recurse -ErrorAction SilentlyContinue | measure Length -s -ErrorAction SilentlyContinue | Select-Object -Property @{name='Directory';expression={$directory}}, @{n="Size(GB)";e={[math]::Round((($_.Sum)/1GB),2)}}  
$results