[PD] more Pd/shell communication

[Florian Hollerweger]

Hi list,

I am a happy user of Chris McCormick's recent suggestion for Pd/shell 
communication using [netsend], [netreceive] and a shell script piping 
commands from/to pdreceive/pdsend in a while loop (based on a solution 
by Claude):

http://lists.puredata.info/pipermail/pd-list/2009-02/067864.html

However, this ceases to work when the Pd patch is restarted, since the 
ports remain occupied. While one can close the link from Pd to the 
script before restarting the patch using the [disconnect< message to 
[netsend], there seems to be no clean way of closing the connection from 
the script to Pd.

I am guessing that one would need to modify Chris' script in a way that 
it is possible to send a 'disconnect' event from Pd to the script, which 
causes it to close the pipe to Pd, right?

Not being the world's greatest shell scripter, I would appreciate any 
hints on how this could be accomplished.

best,
flo.H