I have created an SQL database, but need instruction / help on how to access externally and internally.

I ran:

sed -i "s/^bind-address/#bind-address/" /etc/mysql/my.cnf

then the $MYSQL_BATCH  gives a command not found, and I don't know why: Host as ip address, user & pw same as in MYSQL_BATCH comand

MYSQL_BATCH="mysql --user=root --password=$MYSQL_PASS --batch"

$MYSQL_BATCH --execute "INSERT INTO mysql.user ( Host , User , Password , Select_priv ,
    Insert_priv , Update_priv , Delete_priv , Create_priv , Drop_priv , Reload_priv , 
    Shutdown_priv , Process_priv , File_priv , Grant_priv , References_priv , 
    Index_priv , Alter_priv , Show_db_priv , Super_priv , Create_tmp_table_priv , 
    Lock_tables_priv , Execute_priv , Repl_slave_priv , Repl_client_priv , 
    Create_view_priv , Show_view_priv , Create_routine_priv , Alter_routine_priv , 
    Create_user_priv , ssl_type , max_questions , max_updates , max_connections , 
    max_user_connections) VALUES ( '%', 'root', '', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y',
    'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y','Y', 'Y', 'Y', 'Y', 'Y',
    'Y', 'Y', 'Y', 'Y', '', '0', '0', '0', '0');"

and

/etc/init.d/mysql restart

I have Created a database

I have Created a database user and password in MySQL Server Configuration -> User Permission

I have set up MySQL Server Configuration -> Database Permissions to allow user from any host to edit

I have set up MySQL Server Configuration -> Host Permissions to ANY

I have added ACCEPT If protocol is TCP and destination port is 3306 in the Firewall

for EXTERNAL: I assume the host is the ip address, and the username and pw are based on the admin OR the database user and pw.

for INTERNAL: I assume the host is localhost.

Can anyone what is missing in these steps? Why MYSQL_BATCH is getting command not found

Thanks