Hello world
First of all, you need to create a new AbleScript project.
On Unix systems, you have to do:
$ mkdir hello_world
$ cd hello_world
$ touch main.able
and then open main.able with your editor of choice.
Hello World program in AbleScript looks like this:
/*Hello, world!*/ print;
Then, execute your program with AbleScript
$ able-script --file main.able