.my.cnf variables

nano /root/.my.cnf && chmod 400 /root/.my.cnf && chown root:root /root/.my.cnf

[mysql]
user=username
password=passwd

[mysqldump]
user=username
password=passwd

[mysqldiff]
user=username
password=passwd

[client]
user=username
password=passwd

[mysql]
user=root
password=passwd

[mysqldump]
user=root
password=passwd

[mysqldiff]
user=root
password=passwd

[client]
user=root
password=passwd

--defaults-extra-file=/root/.my.cnf
--defaults-file=/root/.my.cnf