centos添加自启动服务

 1. 编写脚本，修改执行权限
vim myservice.sh, chmod +x myservice.sh
#!/bin/bash
case "$1" in
        start)
                echo "Starting myservice...";;
        stop)
                echo "Shutting down myservice...";;
        restart)
                echo "Shutting down myservice..."
                echo "Starting myservice...";;
        *)  
                echo "Usage: #0 {start|stop|restart}";;
esac


2. 将脚本（去掉.sh后缀）放到/etc/init.d/目录下
cp /tmp/myservice.sh /etc/init.d/myservice


3. 运行/etc/init.d/myservice服务
/etc/init.d/myservice start | stop | restart


4. 使用chkconfig --add添加到启动的服务，发现没有myservice
chkconfig --add myservice
系统提示：service myservice does not support chkconfig
chkconfig  myservice  on

5. 查看帮助，man chkconfig， /example
得到服务的脚本格式：
# chkconfig: 启动level 启动顺序SXX 关闭顺序KXX
# description: 描述 


vim /etc/init.d/myservice, 添加代码：
#chkconfig: 35 24 25
#description: this is a test


6.添加系统开机自动启动服务
chkconfig --add myservice
chkconfig --list myservice
myservice       0:off 1:off 2:off 3:on 4:off 5:on 6:off
myservice服务在启动level为3或5时，开机启动


7. 查看添加的服务

chkconfig --list

ls /etc/rc.d/rc*.d/

ls /etc/rc.d/rc*.d/*myservice，可以看到：
/etc/rc.d/rc0.d/K25myservice  /etc/rc.d/rc4.d/K25myservice
/etc/rc.d/rc1.d/K25myservice  /etc/rc.d/rc5.d/S24myservice
/etc/rc.d/rc2.d/K25myservice  /etc/rc.d/rc6.d/K25myservice
/etc/rc.d/rc3.d/S24myservice