Windows Shell script to organize photos in subfolders

OrgPhotos.ps1

#
# Description: Organize photos by date taken
#
# Example:
#
# From path where photos are, type:
#
# OrgPhotos
#
# > It will create subfolders grouped by Year and then by date, moving all
#   photos to their respective folders.
#
function OrgPhotos 
{
    param 
    (
        $recursive = 'false'
    )
    
    # https://stackoverflow.com/questions/6834259/how-can-i-get-programmatic-access-to-the-date-taken-field-of-an-image-or-video
    $sysDrawing = [reflection.assembly]::LoadWithPartialName("System.Drawing")
    $StartFolder = Get-Location

    Write-host $recursive
    if ( $recursive -eq 'true' ) {
        $Files = Get-ChildItem -Recurse -Path $StartFolder -filter *.jpg
        Write-Host "Defined recursive"
    } else {
        $Files = Get-ChildItem -Path $StartFolder -filter *.jpg
        Write-Host "Defined non recursive"
    }
    
    foreach ($file in $Files) {
        $pic = New-Object System.Drawing.Bitmap($file.fullname)
        try {
            $bitearr = $pic.GetPropertyItem(36867).Value
            $stringDate = [System.Text.Encoding]::ASCII.GetString($bitearr)
            $pic.Dispose()
        } catch {
            Write-Host "No date information: $($file.name)" -fore Red
            $stringDate = ""
        }
        If ($stringDate -ne "") {
            $yearTaken = $stringDate.Substring(0,4)
            $monthTaken = $stringDate.Substring(5,2)
            $dayTaken = $stringDate.Substring(8,2)
            $dateTaken = $yearTaken + "_" + $monthTaken + "_" + $dayTaken
            $yearPath = ".\" + $yearTaken

            If (-not (Test-Path -Path $yearPath)) {
                $yearFolder = New-Item -ItemType Directory $yearPath
            }
            $imgPath = $yearPath + "\" + $dateTaken
            If (-not (Test-Path -Path $imgPath)) {
                $dayFolder = New-Item -ItemType Directory $imgPath
            }
            $comparePath = Resolve-Path $imgPath
            If ( $file.fullname -ne "$($comparePath)\$($file.name)" ) {
                If ( -not (Test-Path -Path "$($comparePath)\$($file.name)" -PathType Leaf )) {
                    Write-Host "Move $($file.name) to $($imgPath)" -fore Green
                    # Move-Item -Path $file.fullname -Destination $imgPath -Force
                    Move-Item -Path $file.fullname -Destination $imgPath
                } else {
                    Write-Host "Ficheiro já existe: $($imgPath)\$($file.name)" -Fore Red
                }
            }
        }
    }

    $Files = $null

}

OrgPhotos