[root@localhost /]# ps aux | grep mysql
root      5919  0.0  0.0   3908  1356 pts/1    S    15:34   0:00 /bin/sh /usr/bin/mysqld_safe
mysql     6044  0.1  0.7 112408 15824 pts/1    Sl   15:35   0:00 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/localhost.err --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/lib/mysql/mysql.sock --port=3306
root      6098  0.0  0.0   3260   740 pts/1    S+   15:36   0:00 grep --color mysql