[PD] troubles killing a pd instance with shell object

Ivica Bukvic ico at vt.edu
Sat Apr 13 23:04:22 CEST 2013

This is just a wild guess what two things coming to mind based on your
description. First, you have to make sure that your shell script ends with
"exit 0" command. Second, you can always try to simply kill the pd-gui
process together with PD. The trick in this case will be finding out the
right process ID because you don't want to kill both PD instances--this can
be done again with a shell script before the second instance has been

On Apr 13, 2013 11:40 AM, "Marco Donnarumma" <devel at thesaddj.com> wrote:

> Hi all,
> I'm having some troubles with two pd instances and [shell].
> I launch a patch with the first Pd instance from the terminal. Here, i use
> [shell] to create a new patch and open it with a second Pd instance.
> when the new patch is loaded, it sends a [quit( message to [noquit] to the
> first pd-instance patch, via OSC, in order to kill it.
> everything works fine until the first instance receive the OSC message. At
> this point, the pd process is killed but the GUI freezes on the screen, and
> the terminal freezes too.
> If I launch the first Pd instance from the terminal with '&', and then run
> the script through
>  the same terminal, it works fine.
> this below is the script. nothing fancy.
> any idea why the process doesn't work?
> thanksss!
> \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
> #!/bin/bash
> cp /usr/share/Xth-Sense/Xth-Sense.pd $HOME/Desktop/$NEWPATCH.pd;
> sleep 2;
> pdextended -alsa $HOME/Desktop/$NEWPATCH.pd;
> exit
> \\\\\\\\\\\\\\\\\\
> --
> Marco Donnarumma
> New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
> Embodied Audio-Visual Interaction Research Team.
> Department of Computing, Goldsmiths University of London
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Portfolio: http://marcodonnarumma.com
> Research: http://res.marcodonnarumma.com
> Director: http://www.liveperformersmeeting.net
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