#!/bin/bash

  clear
            # display menu

         echo "-------------------------------"
         echo "       Superman Restaurant"
         echo "-------------------------------"
         echo "            Main Menu"
         echo "-------------------------------"
         echo "   $(date)"
         echo "-------------------------------"
         echo "1. Display Meal Menu."
         echo "2. Display Drinks."
         echo "3. Display Desert."
         echo "4. Exit"
            # get input from the user

         read -p "Enter your choice [ 1 -4 ] " choice
            # make decision using case..in..esac
         case $choice in
                  1)
                            clear
         echo "-------------------------------"
         echo "       Superman Restaurant"
         echo "-------------------------------"
         echo "            Meal Menu"
         echo "-------------------------------"
         echo
         echo "1. Chichen Fried Rice    10RM."
         echo "2. Tom Yam Fried Rice    15RM."
         echo "3. Lovers Rice           10RM."
         echo "4. Curry Rice            12RM."
         echo "5. Jelof Rice            15RM."
         echo "6. Fairy Rice            10RM."
         echo "7. Spicy Stew Rice       18RM."
         echo "8. Exit"


         read -p "Enter your choice [ 1 -7 ] " Meal
         case $Meal in
         1) meal.txt
         Chichen Fried Rice > meal.txt
         echo " You Just Selected Chichen Fried Rice"
read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
         fi
         ;;
         2)
         echo " You Just Selected Tom Yam Fried Rice"

         read -p "Press [Enter] to continue order..."
         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
         fi
         ;;
         3)
         echo " You Just Selected Lovers Rice"
         read -p "Press [Enter] to continue order..."
         if $readEnterKey true
         then
         echo
         echo "Your Order has been Completed"
         else
         echo ""
         fi
        ;;
         4)
         echo " You Just Selected Curry Rice"
         read -p "Press [Enter] to continue order..."
         if $readEnterKey true
         then
         echo
echo "Your Order has been Completed"
         else
         echo ""
fi
         ;;
         5)
         echo " You Just Selected Jelof Rice"

         read -p "Press [Enter] to continue order..."
         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
         ;;
                 6)
         echo " You Just Selected Fairy Rice"

         read -p "Press [Enter] to continue order..."
         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
         ;;
                 7)
        echo " You Just Selected Spicy Rice"

         read -p "Press [Enter] to continue order..."
         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
                  8)

          echo "Bye!"
                                  exit 0
                                  ;;
          *)
             echo "Error: Invalid option..."
             read -p "Press [Enter] key to continue..."

                                  ;;

esac
;;
                 2)
                            clear
         echo "-------------------------------"
         echo "       Superman Restaurant"
         echo "-------------------------------"
         echo "            Drinks Menu"
         echo "-------------------------------"
         echo
         echo "1. Kikapo Juice     2RM."
         echo "2. Orange Juice     3RM."
         echo "3. Apple Juice      3RM."
         echo "4. Lemon Ice Tea    1RM."
         echo "5. Mango Lassi      5RM."
         echo "6. Herba Tea        2RM."
         echo "7. Cococola         2RM"
         echo "8. Bye!"
         read -p "Enter your choice [ 1 -8 ] " Drinks
         case $Drinks in
             1)
         echo " You Just Selected Kikapo Juice"

         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
 else
         echo ""
         fi
        ;;
          2)
         echo " You Just Selected Orange Juice"

         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
         3)echo " You Just Selected Apple Juice"
         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
          4)echo " You Just Selected Lemon Juice"
         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
 5)echo " You Just Selected Mango Juice"
         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""

fi
;;
         6)echo " You Just Selected Herbal Tea"
         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
         7)echo " You Just Selected Cocacola"
         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
         8)echo "Bye!"
                                  exit 0
                                  ;;
          *)
             echo "Error: Invalid option..."
 read -p "Press [Enter] key to continue..."

                                  ;;
            esac
;;
                            3)

                            clear
         echo "-------------------------------"
         echo "       Superman Restaurant"
         echo "-------------------------------"
         echo "            Desert Menu"
         echo "-------------------------------"
         echo
         echo "1. Ferry Cake               15RM."
         echo "2. Chocolate ice Cream      10RM."
         echo "3. Vanilla Cake             13RM."
         echo "4. Queen Cake               12RM."
         echo "5. Bye!"
         read -p "Enter your choice [ 1 -5 ] " Desert
         case $Desert in
             1)
         echo " You Just Selected Ferry Cake"

         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
          2)
         echo " You Just Selected Chocolate ice Cream"

         read -p "Press [Enter] to continue order..."
if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
         3)
         echo " You Just Selected Vanilla Cake"

         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""
fi
;;
          4)
        echo " You Just Selected Queen Cake"

         read -p "Press [Enter] to continue order..."

         if $readEnterKey true
         then

         echo
         echo "Your Order has been Completed"
         else
         echo ""

fi
;;
         5)


          echo "Bye!"
                                  exit 0
                                  ;;
          *)
             echo "Error: Invalid option..."
             read -p "Press [Enter] key to continue..."

                                  ;;
            esac
;;

          4)

           echo "Bye!"
                                  exit 0
                                  ;;
          *)
             echo "Error: Invalid option..."
             read -p "Press [Enter] key to continue..."

                                  ;;



esac

case "$variable" in
"$condition1" )
command...
;;
"$condition2" )
command...
;;
esac

Notes:-
1-Each test line ends with a right paren ).
2-Each condition block ends with a double semicolon ;;.
3-The entire case block terminates with an esac (case spelled backwards).
4-Quoting the variables is not mandatory, since word splitting does not take
place.