Using flex on ubuntu

Pardon me if I am re-posting the same question but I am a newbie and want to learn flex. My problem is I don't know how to start with..

I work on windows machine and I searched for eclipse plugin but every where its about installing flex builder which leads me to http://labs.adobe.com/technologies/flex/flexbuilder_linux/ . Firstly I don't know flex builder. what I googled and understood is flex builder will give us a user friendly environment to build flex apps. what I need is some eclipse plugin through which I can create flex projects.(By flex builder do we mean that it is essential for creating a flex project through eclipse ).

In Adobe download repo i can find sth like Open开发者_Python百科 Source flex4 SDK, wont this be sufficient for flex related development.

Thanks in advance

There is no linux version of Flash Builder. Trust me, I even hacked one together and it was horrible. There are however other IDEs that handle Flex like IntelliJ Ideas and FDT.

As for how to start your first project, I would recommend you use google because there's ample examples already out there.

There is no eclipse plugin for the Flash/Flexbuilder product family on Linux. This is from the link you posted

Adobe will no longer be investing in the development
of a version of Adobe® Flex® Builder™ or Adobe Flash® 
Builder™ that runs on Linux operating systems

The only option you have is to use mxmlc and compile from the command line. Since Flex is done in ECMAScript, you may be able to use an IDE to help you but of course you lose the ability to debug, automate test and use the design view.