让apache2不开机启动，管理Ubuntu的开机启动项

今天在网上发现了一个很好用的管理Ubuntu下开关启动的软件，叫做sysv-rc-conf

使用命令行：

tf@ubuntu:/etc/apache2$ sudo update-rc.d -f apache2 remove
 Removing any system startup links for /etc/init.d/apache2 ...
   /etc/rc0.d/K09apache2
   /etc/rc1.d/K09apache2
   /etc/rc2.d/S91apache2
   /etc/rc3.d/S91apache2
   /etc/rc4.d/S91apache2
   /etc/rc5.d/S91apache2
   /etc/rc6.d/K09apache2

恢复时使用：

tf@ubuntu:/etc/apache2$ sudo update-rc.d apache2 defaults
 Adding system startup for /etc/init.d/apache2 ...
   /etc/rc0.d/K20apache2 -> ../init.d/apache2
   /etc/rc1.d/K20apache2 -> ../init.d/apache2
   /etc/rc6.d/K20apache2 -> ../init.d/apache2
   /etc/rc2.d/S20apache2 -> ../init.d/apache2
   /etc/rc3.d/S20apache2 -> ../init.d/apache2
   /etc/rc4.d/S20apache2 -> ../init.d/apache2
   /etc/rc5.d/S20apache2 -> ../init.d/apache2