PS script to group the files by created year-month

group.ps1

$SourceFolder = "E:\Sorce"
$outputDir = "e:\Photos-Grouped"
$files = Get-ChildItem -Path $SourceFolder -Recurse | Where-Object {$_.PSIsContainer -eq $false}

foreach ($file in get-ChildItem $files) {

    $toDir = Join-Path $outputDir $file.lastwritetime.toString("yyyy\\yyyy-MM")
    $toFile = Join-Path $toDir $file.name

	if(!(Test-Path $toDir))
	{
    	New-Item -Path $toDir -ItemType Directory -Force | Out-Null
	}

	Echo $toFile
	Copy-Item -Path $file.FullName -Destination $toFile
}