Shell Programming and Scripting

PS3="$main_menu_prompt"
select cmd in "Option 1" "Option 2" "Option 3"
do
        case $cmd in
                "Option 1")
                        clear
                        PS3="$submenu_prompt"
                        select option in "Yes" "No"
                        do
                                case $option in
                                        "Yes") print "**Not configured**"
                                               sleep 2
                                               break;;
                                        "No")  break;;
                                        *) print "You must enter a valid response!"
                                               sleep 2
                                               clear
                                               submenu;;
                                esac
                        done
                        clear
                        mainmenu
                        PS3=$main_menu_prompt;;

#!/bin/ksh

typeset -r SLEEPTIME=2

REVON=$(tput smso)  # Reverse on.
REVOFF=$(tput rmso) # Reverse off.

while :
do
    clear
    print "\t    $REVON One way to do a menu $REVOFF"
    print
    print
    print "\tOptions:"
    print "\t---------------------------------------------"
    print "\t1) Option 1     4) Option 4"
    print "\t2) Option 2     5) Option 5"
    print "\t3) Option 3     6) Option 6"
    print
    print "\n\tOther Options:"
    print "\t----------------"
    print "\tr) Refresh screen"
    print "\tq) Quit"
    print
    print "\tEnter your selection: r\b\c"
    read selection
    if [[ -z "$selection" ]]
        then selection=r
    fi

    case $selection in
        1)  print "\nYou selected option 1"
            sleep $SLEEPTIME
            ;;
        2)  print "You selected option 2"
            sleep $SLEEPTIME
            ;;
        3)  print "You selected option 3"
            sleep $SLEEPTIME
            ;;
        4)  print "You selected option 4"
            sleep $SLEEPTIME
            ;;
        5)  ;&  #  Fall through example.
        6)  print "You selected option 5 or 6"
            sleep $SLEEPTIME
            ;;
      r|R)  continue
            ;;
      q|Q)  print
            exit
            ;;
        *)  print "\n$REVON Invalid selection $REVOFF"
            sleep 1
            ;;
    esac
done

        One way to do a menu


        Options:
        ---------------------------------------------
        1) Option 1     4) Option 4
        2) Option 2     5) Option 5
        3) Option 3     6) Option 6


        Other Options:
        ----------------
        r) Refresh screen
        q) Quit

        Enter your selection: q

$