#!/bin/sh
DIALOG=${DIALOG=/usr/bin/dialog}

$DIALOG --title "INFO BOX" \
        --infobox "Hi, this is an information box. It is
different from a message box in that it will
not pause waiting for input after displaying
the message. The pause here is only introduced
by the sleep command, not by dialog.

You have 10 seconds to read this..." 10 52

stty -echo
sleep 10
stty echo