想在Ubuntu一開機的時候就跑指令

Adding a script to be run at bootup in Ubuntu Debian

* 加入在rcS檔按裏面最下行
* you can add it in the rcS file

joec@ubuntu~$ sudo vim /etc/init.d/rcS

比如說我一開機就想跑Dynamic DNS這個執行檔

dydns

joec@ubuntu~$ sudo ./dydns

讓他自動開整理出一個開機指令
*auto create script in Run Console Levels

joec@ubuntu~$ sudo /etc/init.d/update-rc.d dydns defaults
Adding system startup for /etc/init.d/dydns ...
/etc/rc0.d/K20dydns -> ../init.d/dydns
/etc/rc1.d/K20dydns -> ../init.d/dydns
/etc/rc6.d/K20dydns -> ../init.d/dydns
/etc/rc2.d/S20dydns -> ../init.d/dydns
/etc/rc3.d/S20dydns -> ../init.d/dydns
/etc/rc4.d/S20dydns -> ../init.d/dydns
/etc/rc5.d/S20dydns -> ../init.d/dydns

執行你的執行檔

joec@ubuntu:/etc/init.d$ sudo chmod +x dydns