PowerShell - Move specific files from source sub folders to destination with identical sub folder structure
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I am working on a PS script to move the 5 newest files by file type from a source directory to a destination directory while preserving the subfolder structure. For example I would like to move any file starting with AB_ from ParentFolder1\FolderA, ParentFolder1\FolderB, ParentFolder1\FolderC, etc to ParentFolder2\FolderA, ParentFolder2\FolderB, ParentFolder2\FolderC.
 
ParentFolder1

--FolderA

----AB_1234.txt

----AB_5678.txt

----XY_9876.txt

----XY_9876.txt

--FolderB

----AB_1234.txt

----AB_5678.txt

----XY_9876.txt

----XY_9876.txt

--FolderC

----AB_1234.txt

----AB_5678.txt

----XY_9876.txt

----XY_9876.txt

Is there a way to tie this into a for loop? Here is what I have so far:

    $source = "C:\Test"
    $dest = "E:\archive"
    $AB = Get-ChildItem -Path $source -include AB_* -Recurse | Where-Object {-not $_.PsIsContainer}
    $XY = Get-ChildItem -Path $source -include XY_* -Recurse | Where-Object {-not $_.PsIsContainer}
    $keep = 5
    $logfile = "E:\_archive\temp\log_{0:MM-dd-yyyy}.log" -f (Get-Date)
	
    if ($AB.Count -gt $keep) {
	    $AB | Sort -property LastWriteTime | Select-Object -First ($AB.Count - $keep) | Move-Item -destination $dest\AB -Force -Verbose
	    }
    Else
	    {"No AB_ files to archive." | Out-File $LogFile -Append -Force}
		
    if ($XY.Count -gt $keep) {
	    $XY | Sort -property LastWriteTime | Select-Object -First ($XY.Count - $keep) | Move-Item -destination $dest\XY -Force -Verbose
	    }
    Else
	    {"No XY_ files to archive." | Out-File $LogFile -Append -Force}