MENU BOX

#!/bin/bash

 dialog --title "ENTER YOUR CHOICE" --backtitle "MENU DRIVEN PROGRAM" \
 --menu "USE UP DOWN TO SELECT" 15 50 3 \
  DATE/TIME  " TO DISPLAY TIME & DATE " \
  CALENDER  " TO DISPLAY CALENDER " \
  LOGINUSERS  " To DISPLAY CURRENTLY LOGGED IN USERS " 2>input.txt \

 sel=`cat input.txt`

 case $sel in

 DATE/TIME) dialog --msgbox " `date` " 50 50 ;;
 CALENDER) dialog --msgbox " `cal` " 50 50 ;;
 LOGINUSERS) dialog --msgbox " `who` " 50 50 ;;

esac