how to stop mysql server with root

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http://askubuntu.com – How can i stop mysql server (installed using binary installation under /usr/local/mysql)? When i go in /usr/local/mysql/bin and execute command mysqld stop i get following error message : [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root! [ERROR] Aborting [Note] mysqld: Shutdown complete and i can still see process for mysql server. same happens when i try to do it with mysqld in /etc/init.d (HowTos)