#!/bin/bash
# Bash Menu Script Example

PS3='Please enter your choice: '
options=("Option 1" "Option 2" "Option 3" "Quit")
select opt in "${options[@]}"
do
    case $opt in
        "Option 1")
            echo "you chose choice 1"
            ;;
        "Option 2")
            echo "you chose choice 2"
            ;;
        "Option 3")
            echo "you chose choice 3"
            ;;
        "Quit")
            break
            ;;
        *) echo invalid option;;
    esac
done

title="Select example"
prompt="Pick an option:"
options=("A" "B" "C")

echo "$title"
PS3="$prompt "
select opt in "${options[@]}" "Quit"; do

    case "$REPLY" in

    1 ) echo "You picked $opt which is option $REPLY";;
    2 ) echo "You picked $opt which is option $REPLY";;
    3 ) echo "You picked $opt which is option $REPLY";;

    $(( ${#options[@]}+1 )) ) echo "Goodbye!"; break;;
    *) echo "Invalid option. Try another one.";continue;;

    esac

done

while opt=$(zenity --title="$title" --text="$prompt" --list
                   --column="Options" "${options[@]}"); do

    case "$opt" in
    "${options[0]}" ) zenity --info --text="You picked $opt, option 1";;
    "${options[1]}" ) zenity --info --text="You picked $opt, option 2";;
    "${options[2]}" ) zenity --info --text="You picked $opt, option 3";;
    *) zenity --error --text="Invalid option. Try another one.";;
    esac

done

sudo -s "echo get debconf/frontend | debconf-communicate"

!#/bin/bash
echo "select the operation *********  1)operation 1 2)operation 2 3)operation 3 4)operation 4 "

read n
case $n in
    1) commands for opn 1;;
    2) commands for opn 2;;
    3) commands for opn 3;;
    4) commands fo  opn 4;;
    *) invalid option;;
esac

#! /bin/bash

selection=$(zenity --list "Option 1" "Option 2" "Option 3" --column="" --text="Text above column(s)" --title="My menu")

case "$selection" in
"Option 1")zenity --info --text="Do something here for No1";;
"Option 2")zenity --info --text="Do something here for No2";;
"Option 3")zenity --info --text="Do something here for No3";;
esac

#! /bin/bash

selection=$(zenity --list "Option 1" "Option 2" "Option 3" --column="" --text="Text above column(s)" --title="My menu")

case "$selection" in
"Option 1")zenity --info --text="Do something here for No1";;
"Option 2")zenity --info --text="Do something here for No2";;
"Option 3")zenity --info --text="Do something here for No3";;
esac

ls