Think before you speak, read before you think.

update-rc.d的用法

update-rc.d为debian/ubuntu管理开机启动的工具,类似于chkconfig

详细用法可查阅帮助信息

update-rc.d --help

查看系统当前的初始化服务

$ ls /etc/init.d/
$ ls /etc/rc?.d

增加或删除开机启动项

update-rc.d -f <service> remove # 删除开机启动项服务
update-rc.d <service> start <order> <runlevels> # 新增系统启动项服务
update-rc.d <service> stop <order> <runlevels> # 停用某系统启动项

修改启动项的启动级别

update-rc.d [-n] name disable|enable [ S|2|3|4|5 ]

例子

update-rc.d php-fpm defaults # 新增系统启动项,开机即运行php-fpm服务
update-rc.d -f apache2 remove # 将apache2从启动项里删除
update-rc.d minecraft_server defaults #开机运行minecraft
update-rc.d -f minecraft_server remove #将minecraft从启动项移除

如将pptpd从开机启动中移除

# update-rc.d -n -f pptpd remove
 Removing any system startup links for /etc/init.d/pptpd ...
 /etc/rc1.d/K20pptpd
 /etc/rc2.d/S20pptpd
 /etc/rc3.d/S20pptpd
 /etc/rc4.d/S20pptpd
 /etc/rc5.d/S20pptpd

自己编译安装的想要加到开机运行服务中,还可以编写一个abc文件,具体可参考其他/etc/init.d/中的文件,放到/etc/init.d/abc

#! /bin/sh
# /etc/init.d/abc
#
# Some things that run always
touch /var/lock/abc
# Carry out specific functions when asked to by the system
case "$1" in
 start)
 echo "Starting script abc "
 echo "Could do more here"
 ;;
 stop)
 echo "Stopping script abc"
 echo "Could do more here"
 ;;
 *)
 echo "Usage: /etc/init.d/abc {start|stop}"
 exit 1
 ;;
esac
exit 0

给其加上权限

chmod 755 /etc/init.d/abc

添加启动链接即可

# update-rc.d abc defaults

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