#!/bin/sh
DIALOG=${DIALOG=/usr/bin/dialog}
$DIALOG --title "MESSAGE BOX" --clear \
--msgbox "Hi, this is a simple message box. You can use this to \
display any message you like. The box will remain until \
you press the ENTER key." 10 41
case $? in
0)
echo "OK";;
255)
echo "ESC pressed.";;
esac