想让配置修改过的mysql能在机器关机或重启时能先停止mysql进程，防止数据异常

在/etc/init.d/下添加脚本，如下：
#!/bin/sh
### BEGIN INIT INFO
# Provides:          test_shutdown
# Required-Start:    $syslog
# Should-Start: $time
# Required-Stop:     $syslog
# Should-Stop: $time
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: test_shutdown
# Description:       test_shutdown
### END INIT INFO


case "$1" in
start)
echo "start" >>/tmp/test.log
sleep 1;;
stop)
echo "begin stop" >>/tmp/test.log
su - test -c "/home/test/scripts/shutdown.sh"
echo "done stop" >>/tmp/test.log
;;
*)
echo "other" >>/tmp/test.log
esac

执行 chkconfig test_shutdown on