Fails compile .as files on linux

[Guest]

Hi threre

I've installed Flex SDK 4.6 on Ubuntu through this guide.

I've created a .as file in :

~/helloworld.as

and then try to compile that by :

$ mxmlc ~/helloWorld.as

But fails to compile and get :

mxmlc: command not found

Please tell me what am i missing here ?