Shell commands from a Luan server

Is it possible in Luan to click a button that executes some shell command?

I was looking through here:

http://www.luan.ws/manual.html

and the os module seems to be what I need. The problem is I get errors when attempting to import it. 'require "os"' fails for me, and also if I try to use the os module without importing anything, I get errors saying "os" is not recognized.

How can I execute shell commands from Luan?

os.html.luan

rename this to "os.html.luan"

It works, thanks.

uri("os:"..cmd).read_text() does the job.