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On Tue, Feb 1, 2011 at 5:32 AM, Gilles Ganault wrote:

> I was thinking of writing a small Lua script that would be ran every
> minute by Cron to parse the output of "ps aux" and send an e-mail in
> case the application is no longer listed.

If your appliance has a /proc filesytem and you know the process ID,
you could test for the existence of the /proc/[PID]/status file with
pure Lua.