echo " -a action which action to performed on the shared content:"
echo " edit/send/view (default:view)"
echo " -c content-type content-type to use (default: guessed from file extension,"
echo " -a action which action to performed on the shared content:"
echo " edit/send/view (default:view)"
echo " -c content-type content-type to use (default: guessed from file extension,"