Ajax/Prototype/Prototype-UI: Creating a modal busy screen

While I was developing a web based application, one of the operations took rather long to accomplish. So I was looking for ways to create a modal busy screen with spinning image at the center. Most of them involves quite a bit of code. Then I decided to see whether I can make use of Prototype-UI to create a modal busy page and it works!! Amazingly, it doesn’t involve a lot of CSS and Javascript code either. Here are the steps:

Awk scripts for reading and editing Ubuntu /etc/network/interfaces file (Part 2/2)

For modifying the /etc/network/interfaces file, I use another script and it is slightly more complicated.

Awk scripts for reading and editing Ubuntu /etc/network/interfaces file (Part 1/2)

It is pretty straightforward to setup permanent network configuration on Ubuntu 8.04. All you need is to edit /etc/network/interfaces file and a very thorough tutorial is given in http://www.cyberciti.biz/faq/setting-up-an-network-interfaces-file/ to show you how manually edit for DHCP, static and promiscuous mode. However, I cannot find any command line utility for configuring permanent network setup.

So here are couple awk scripts for reading and writing /etc/network/interfaces file. I hope someone will find it useful, especially for integrating with other programs.