I may be making too big a deal of all this but I can't figure out how
to do something like:
postgres <args> | rotatelogs <args>
from launchd. If I put that command in a simple bash shell script, I
*believe* it will not work. The signal will go to bash and bash will
not pass it along to the children.
I could trap the signal and pass it along myself... but, $! gives the
pid for the last process in the pipe (rotatelogs). That is not what I
need to signal. I need the signal passed to postgres. And, in fact,
it would be nice if the signal did NOT pass to rotatelogs. I'd like
for it to stop when its input closes and not before then.
I'm going to look in to using ksh and maybe using co-processes with
ksh. bash does not seem to have that concept. But, it just seems
like it should not be this hard to do.
Anyone have any suggestions of how to do this?
Thank you,
pedz
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