Shell Programming and Scripting

while true; do
    read -p "Do you want to get coverage of a specific panel?" yn
    case $yn in
        [Yy]* ) menu; break;;
        [Nn]* ) exit;;
        * ) echo "Please answer yes or no.";;
    esac
done

select file1 in $(cd /user/file/data;ls);do break;done
echo $file1

while true; do
    read -p "Do you want to get coverage of a specific panel?" yn
    case $yn in
        [Yy]* ) menu; select file1 in $(cd /user/file/data;ls);do break;done
                  echo $file1
        [Nn]* ) exit;;
        * ) echo "Please answer yes or no.";;
    esac
done

while true; do
    read -p "Do you want to get coverage of a specific panel?" yn
    case $yn in
        [Yy]* ) menu; break;;
        [Nn]* ) exit;;
        * ) echo "Please answer yes or no.";;
    esac
done

menu() {
    while true
    do
        printf "\n please make a selection from the MENU \n
        ==================================
        \t 1  Incidental Findings     
  ==================================\n\n"
        printf "\t Your choice: "; read menu_choice

        case "$menu_choice" in
        1) incidental ;; select file1 in $(cd /user/file/data;ls);do break;done
            ......... (whatever command to execute)
        *) printf "\n Invalid choice."; sleep 2 ;;
        esac
    done
}

1) incidental ;; select file1 in $(cd /user/file/data;ls);do break;done
            ......... (whatever command to execute)

1) incidental ; select file1 in $(cd /user/file/data;ls);do break;done
            ......... (whatever command to execute) ;;