[Freeswitch-users] Running sox from within lua

[Alex Lake]

Actually, using os.execute even with totally innocuous commands seems to 
fail.
Maybe io.popen would be more appropriate? Freeswitch-specific 
documentation/examples for this seem somewhat thin on the ground, though.
In particular, dealing with the return value.
> Having a spot of bother with this bit of lua:
>
> result = os.execute(string.format([[sox --norm %s %s.new]],
> file_to_normalise, file_to_normalise))
>
> It's returning -1. I believe freeswitch is running as root and that the
> sox file is in that location and is runnable.
>
> Any ideas?
>
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