Directadmin increasing mysql limits script

#Limits (setting these options to 0 removes the limit)
MAX_QUERIES_PER_HOUR=30000
MAX_UPDATES_PER_HOUR=20000
MAX_CONNECTIONS_PER_HOUR=5000
MAX_USER_CONNECTIONS=100

#We get DirectAdmin MySQL root user and password here
DA_MYSQL=/usr/local/directadmin/conf/mysql.conf
MYSQLUSER=`grep "^user=" ${DA_MYSQL} | cut -d= -f2`
MYSQLPASSWORD=`grep "^passwd=" ${DA_MYSQL} | cut -d= -f2`

mysql -e "use mysql; UPDATE mysql.user SET max_questions=${MAX_QUERIES_PER_HOUR}, max_updates=${MAX_UPDATES_PER_HOUR}, max_connections=${MAX_CONNECTIONS_PER_HOUR}, max_user_connections=${MAX_USER_CONNECTIONS} WHERE user!='da_admin' AND user!='root' AND user!='da_roundcube' AND user!='da_atmail'; FLUSH PRIVILEGES;" --user=${MYSQLUSER} --password=${MYSQLPASSWORD}