Sync-Subtitle.ps1

dir $PSScriptRoot\*\Subs | foreach {
    $_.Parent.FullName
    $movieDir = $_.Parent.FullName

    cd $movieDir
    $movieFileName = dir *.mkv, *.mp4, *.avi | select -ExpandProperty BaseName -First 1

    cd $_
    dir *.srt | where BaseName -like *english* | sort Length -Descending | select -First 1 | foreach {
        $newSub = $movieFileName + '.en' + $_.Extension
        if (Test-Path ($movieDir + '\' + $newSub)) {} else {
            copy $_ $movieDir
            ren ($movieDir + '\' + $_.Name) $newSub
        }
    }
}