sh cat_test.sh
CREATE DATABASE IF NOT EXISTS name;
CREATE USER user@'%' IDENTIFIED BY password;
GRANT ALL ON name.* TO user@'localhost';
GRANT ALL ON name.* TO user@'%';
FLUSH PRIVILEGES;

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#!/usr/bin/env bash

CUSTOMER_DB_USER=user
CUSTOMER_DB_NAME=name
CUSTOMER_DB_PASSWORD=password

cat <<QUERY_INPUT
CREATE DATABASE IF NOT EXISTS $CUSTOMER_DB_NAME;
CREATE USER $CUSTOMER_DB_USER@'%' IDENTIFIED BY $CUSTOMER_DB_PASSWORD;
GRANT ALL ON $CUSTOMER_DB_NAME.* TO $CUSTOMER_DB_USER@'localhost';
GRANT ALL ON $CUSTOMER_DB_NAME.* TO $CUSTOMER_DB_USER@'%';
FLUSH PRIVILEGES;
QUERY_INPUT