Bash Script menu driven to start stop mariaDB

#!/bin/bash
# MD Harrington 25-9-2020
# A menu driven shell script template  for  Maria DB
## ----------------------------------
# Step #1: Define variables
# ----------------------------------
EDITOR=Geany
RED='\033[0;41;30m'
STD='\033[0;0;39m'

# ----------------------------------
# Step #2: User defined function
# ----------------------------------
pause(){
  read -p "Press [Enter] key to continue..." fcnEnterKey
}

one(){
    echo "Stopping Maria DB Service"
    sudo systemctl stop mariadb.service
        pause
}

# do something in two()
two(){
    echo "Restarting Maria DB Service "
    sudo systemctl restart mariadb.service
        pause
}
# do something in three()
three(){
    echo "Checking Maria DB Service Status"
    sudo systemctl is-active mariadb.service
        pause



}

# do something in four()
four(){

    echo "Disable Maria DB Service at boot time"
    sudo systemctl disable mariadb.service

        pause

}

# function to display menus
show_menus() {
    clear
    echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
    echo "   M A I N - M E N U - M A R I A - D B "
    echo "            MD HARRINGTON              "
    echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
    echo "1. Stop MariaDB"
    echo "2. Re Start Maria DB"
    echo "3. Check Maria DB Status"
    echo "4. Disable Maria DB Service at boot time"
    echo "5. Exit Menu "
}
# read input from the keyboard and take a action
# invoke the one() when the user select 1 from the menu option.
# invoke the two() when the user select 2 from the menu option.
# Exit when user the user select 3 form the menu option.
read_options(){
    local choice
    read -p "Enter choice [ 1 - 5] " choice
    case $choice in
        1) one ;;
        2) two ;;
        3) three ;;
        4) four ;;
        5) exit 0 ;;
        *) echo -e "${RED}Error...${STD}" && sleep 2
    esac
}

# ----------------------------------------------
# Step #3: Trap CTRL+C, CTRL+Z and quit singles
# ----------------------------------------------
trap '' SIGINT SIGQUIT SIGTSTP

# -----------------------------------
# Step #4: Main logic - infinite loop
# ------------------------------------
while true
do

    show_menus
    read_options
done