t0x:~# ps aux | grep mysql
root      3165  0.0  0.2   3656  1288 pts/0    S    15:07   0:00 /bin/sh /usr/bin/mysqld_safe
mysql     3291  3.0  2.9 125960 15324 pts/0    Sl   15:16   0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-external-locking --port=3306 --socket=/var/run/mysqld/mysqld.sock
root      3292  0.0  0.1   2748   572 pts/0    S    15:16   0:00 logger -p daemon.err -t mysqld_safe -i -t mysqld
root      3303  0.0  0.1   2848   704 pts/0    R+   15:16   0:00 grep mysql
t0x:~# mysqld_safe --init-file=~/mysql-init &
[1] 3304
t0x:~# mysqld_safe[3346]: A mysqld process already exists