./mysqld --defaults-file=/etc/my.cnf --user=root

mysql --defaults-file=/etc/my.cnf
或者
mysql -S /tmp/mysql.sock

./mysqld_safe --defaults-file=/etc/my.cnf --user=root &

mysql --defaults-file=/etc/my.cnf
或者
mysql -S /tm/mysql.sock

cp -v /usr/local/mysql/support-files/mysql.server /etc/init.d/
chkconfig --add mysql.server

service mysql.server {start|stop|restart|reload|force-reload|status}

mkdir $MYSQL_BASE/data2
cat <<-EOF>> /etc/my.cnf
[mysqld_multi]
mysqld= /usr/local/mysql/bin/mysqld_safe
mysqladmin = /user/local/mysql/bin/mysqladmin
user = mysqladmin
password = mysqladmin
[mysqld3306]
port            = 3306
socket          = /tmp/mysql3306.sock
pid-file= /tmp/mysql3306.pid
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
basedir= /usr/local/mysql
datadir= /usr/local/mysql/data
[mysqld3307]
port            = 3307
socket          = /tmp/mysql3307.sock
pid-file= /tmp/mysql3307.pid
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
basedir= /usr/local/mysql
datadir= /usr/local/mysql/data2
EOF
#mysql -S /tmp/mysql3306.sock
mysql>GRANT SHUTDOWN ON *.* TO 'mysqladmin'@'localhost' identified by 'mysqladmin' with grant option;
#mysql -S /tmp/mysql3307.sock
mysql>GRANT SHUTDOWN ON *.* TO 'mysqladmin'@'localhost' identified by 'mysqladmin' with grant option;

./mysqld_multi --defaults-file=/etc/my.cnf start 3306-3307

mysqladmin shutdown