On Mon, Feb 24, 2014 at 8:56 PM, Joel Roth <joelz@pobox.com> wrote:

On Mon, Feb 24, 2014 at 06:56:07PM -0300, Gianfranco Ceccolini wrote:
> Hi everybody
>
> I’ve just stumbled on a very simple issue that I can’t solve.
>
> Is there a simple command line player for JACK that plays .ogg files?

This might work (not tested)

ogg123 -d raw test.ogg | ecasound -i stdin -o jack,system

if your distribution was sanely built, then you just need sndfile-jackplayer which plays every format that libsndfile can handle (including ogg).

gstreamer command line utilities can also be used.