Export music to usb

src/freedombone-app-koel

     dialog --title $"Import music from USB drive" --msgbox $'Import complete. You may now remove the USB drive' 6 50
 }
 
+function koel_export_to_usb {
+    clear
+    detect_usb_drive
+
+    if [ ! -b $USB_DRIVE ]; then
+        dialog --title $"Export music to USB drive" --msgbox $'No USB drive found' 6 50
+        return
+    fi
+
+    backup_mount_drive ${USB_DRIVE} ${MY_USERNAME}
+    if [ ! -d $USB_MOUNT/Music ]; then
+        mkdir -p $USB_MOUNT/Music
+    fi
+    cp -ru /music/* $USB_MOUNT/Music
+    backup_unmount_drive ${USB_DRIVE}
+    dialog --title $"Export music to USB drive" --msgbox $'Export complete. You may now remove the USB drive' 6 50
+}
+
 function configure_interactive_koel {
     while true
     do
         trap "rm -f $data" 0 1 2 5 15
         dialog --backtitle $"Freedombone Control Panel" \
                --title $"Koel" \
-               --radiolist $"Choose an operation:" 13 70 3 \
+               --radiolist $"Choose an operation:" 14 70 4 \
                1 $"Import music from directory" off \
                2 $"Import music from USB drive" off \
-               3 $"Exit" on 2> $data
+               3 $"Export music to USB drive" off \
+               4 $"Exit" on 2> $data
         sel=$?
         case $sel in
             1) break;;
         case $(cat $data) in
             1) koel_import_from_directory;;
             2) koel_import_from_usb;;
-            3) break;;
+            3) koel_export_to_usb;;
+            4) break;;
         esac
     done
 }