for i do
case $i in

-v)
	vis=1
	;;
[0-9]|[0-9][0-9]|[0-9][0-9][0-9]|[0-9][0-9][0-9][0-9])
	grep ":$i:" /etc/passwd
	;;
*)
	grep "^$i" /usr/adm/usrlist ||
	grep "^$i" /etc/passwd ||
	grep -i "$i" /usr/adm/usrlist  ||
	echo who indeed is $i
	case $vis in
	1) vwhois $i
		;;
	esac
	;;
esac
done
