To find out the start command for mysqld (using a mac) I can do:
ps aux|grep mysql
I get the following output, which allows me to start mys
/etc/init.d/mysql stop
service mysql stop
killall -KILL mysql mysqld_safe mysqld
When you see the following information, you success
mysql: no process found
mysqld_safe: no process found
mysqld: no process found
I use this to solve the installation problem of MySQL 5.6 in Ubuntu 15.10 using this link.
During this installation, I encounter the problem saying:
"mysqld_safe A mysqld process already exists"
Just completely stop the mysqld, mysqld_safe, mysql solves the problem.