Restart the MySql Server on Linux

1) For RedHat Linux (Fedora Core/Cent OS) use the following command:
# To Start MySql Server:

/etc/init.d/mysqld start
         OR 
service mysqld start

# To Stop MySql Server:

/etc/init.d/mysqld stop
        OR
service mysqld stop

# To restart MySql Server :

 /etc/init.d/mysqld restart
        OR
service mysqld restart

2) For Debian / Ubuntu Linux use the following command:
# To Start MySql Server:

/etc/init.d/mysql start

# To Stop MySql Server:

/etc/init.d/mysql stop

# To Restart MySql Server :

/etc/init.d/mysql restart