Recrusiv Verzeichnisse vergleichen

Möchte man wissen, welche Dateien und Verzeichnisse nach einem Update verschwinden, hilft das folgende Powershell Codefragment.

$Folder1="C:\temp\A1"
$Folder2="C:\temp\A2"
$SourceFileTabel = @{}
$DeletedFiles = @()
foreach($File in Get-ChildItem $Folder2 -Recurse){
    
    if (!(Test-Path $File.FullName -PathType Container )) {
        $tmp = $Folder2 -replace "\\","\\"
        $SourceFileTabel.Add(($File.FullName -replace $tmp),$File.Name)
	}
}
    
foreach($File in Get-ChildItem $Folder1 -Recurse){
    
    if (!(Test-Path $File.FullName -PathType Container)) {
        #File not found!
        $tmp = $Folder1 -replace "\\","\\" 
        if($SourceFileTabel[($File.FullName -replace $tmp)] -eq $null){
           
           $DeletedFiles += ($File.FullName -replace $tmp)
		}
	}
}
    
"Deleted Files"
foreach($item in $DeletedFiles){
    $item
}