Bash_menu to view info about proc and dev

#!/bin/bash 
: start
clear

#=================Function to go Back to Main Menu==================

function goto
{
    label=$1
    cmd=$(sed -n "/^:[[:blank:]][[:blank:]]*${label}/{:a;n;p;ba};" $0 | 
          grep -v ':$')
    eval "$cmd"
    exit
}

start=${1:-"start"}

#========================Group G Banner=============================

echo "  ____                          ____  "
echo " / ___|_ __ ___  _   _ _ __    / ___| "
echo "| |  _| '__/ _ \| | | | '_ \  | |  _  "
echo "| |_| | | | (_) | |_| | |_) | | |_| | "
echo " \____|_|  \___/ \__,_| .__/   \____| "
echo "                      |_|             "

#==========================INTRO===================================

echo "-------------------------------------"
echo "====================================="
echo "__________GROUP_G PRESENTS___________"
echo "====================================="
echo "-------------------------------------"
echo "Select which information you would like to view:"

#===================MAIN MENU============================

select directory in "/proc" "/dev" "/passwd" "Exit"
do
#===================/PROC MENU===========================
        if [ $directory == /proc ]; 
        then
                select submenu in "memoryinfo" "cgroups" "filesystems" "devices" "buddyinfo" "execdomains" "uptime" "$
                do
                
                if [ $submenu == memoryinfo ]; 
                then
                        cat /proc/meminfo #this is useful to find out the memory usage

                elif [ $submenu == cgroups ]; 
                then
                        cat /proc/cgroups #this is helpful to find out what's in /proc/cgroups

                elif [ $submenu == filesystems ];
                then
                        cat /proc/filesystems #Filesystems configured/supported into/by the kernel

                elif [ $submenu == devices ];
                then
                cat /proc/devices # shows Characters devices and block devices

                elif [ $submenu == buddyinfo ];
                then
                        cat /proc/buddyinfo #This file is used primarily for diagnosing memory fragmentation issues

                elif [ $submenu == execdomains ];
                then
                        cat /proc/execdomains #views execdomains, related to security

                elif [ $submenu == uptime ];
                then
                        cat /proc/uptime  #shows the time the system has been up        
                
                elif [ $submenu == stat ];
                then
                        cat /proc/stat  #Shows Overall/various statistics about the system, such as the number of pag$

                elif [ "$submenu" == Back ]; 
                then
                        goto "$start" #goes back to main menu
                
                fi
                done
#=========================/DEV MENU===============================
        elif [ $directory == /dev ]; 
        then
                select submenu in ".container_token" ".host_ip" "Back"
                do
                if [ $submenu == .container_token ];
                then
                        cat /dev/.container_token #shows info about .container_token

                elif [ $submenu == .host_ip ];
                then
                        cat /dev/.host_ip #shows host's ip
        
                elif [ $submenu == Back ]; 
                then
                        goto "$start" #goes back to main menu
                fi
                done

#========================/PASSWD MENU=============================

        elif [ $directory == /passwd ];
        then
                cat /etc/passwd  #shows contents of passwd directory. Sensitive information
#========================EXIT=====================================      
        else [ "$directory" == Exit ]
                echo "Exiting.........."
                exit 0 # exits

fi      
done