do shell script shellPath & "cd " & quoted form of downloadsFolder_Path & " ; export LC_CTYPE=UTF-8 ; " & DL_Use_YTDLP & " --get-filename " & YTDL_no_playlist & DL_Playlist_Items_Spec & YTDL_credentials & URL_user_entered_clean_quoted & " " & simulate_YTDL_output_template & " > /dev/null" & " &> " & YTDL_simulate_file