Once again, Sun Managers has proven its awesomeness. Original question is
at the end of this message. Much thanks to everybody who replied.
Answers varied; some were things that I had already tried (eg. just put it
in the background); others were general reference about start-up files.
The best answer for this situation in particular seems to be:
A) Run it in the background and redirect STDOUT to a file
or...
B) Use NoHUP (to daemon-ize...)
I was particularly impressed by the resolution offered by Bill Walker
<bill.walker@sfa.org.uk> who had done the work to figure out how to handle
the multiple 'tail -f' processes that Swatch spawns. Maybe not 'pretty' by
his own standards, but still effectual...I think it really helped me.
---from Bill--->
'stop')
PID1=`/usr/bin/ps -e -u 1 | /usr/bin/grep swatch | grep
-v $$ | /usr/bin/awk '{print $1}'`
echo $PID1 | tr -cs "[:digit:]" "[\n*]" | sort > /tmp/kill-swatch
TAIL=`sort /tmp/kill-swatch | tail -1`
PID2=`/usr/bin/ps -ef |/usr/bin/grep $TAIL | grep -v
grep | /usr/bin/awk '{print $2}'`
echo $PID2 | tr -cs "[:digit:]" "[\n*]" >> /tmp/kill-swatch
TAIL=`sort /tmp/kill-swatch | tail -1`
PID3=`/usr/bin/ps -ef |/usr/bin/grep $TAIL | grep -v
grep | /usr/bin/awk '{print $2}'`
echo $PID3 | tr -cs "[:digit:]" "[\n*]" >> /tmp/kill-swatch
sort -r /tmp/kill-swatch > /tmp/kill-swatch-sorted
uniq /tmp/kill-swatch-sorted /tmp/kill-swatch-uniq
for PID in `cat /tmp/kill-swatch-uniq`
do
/usr/bin/kill -9 ${PID} 1>/dev/null 2>&1
done
rm /tmp/kill-swat*
;;
*)
-----EOF----
Much thanks to everybody:
Rahul Roy <uroy@eadev1.vanguard.com>
Jim Harmon <jharmon@telecnnct.com>
Richard Bajusz <richb@osg.saic.com>
Bill Walker <bill.walker@sfa.org.uk>
Paul Markham <pmarkham@world.net>
Alessandro Forghieri <alf@orion.it>
Ronald Loftin <reloftin@mailbox.syr.edu>
Jim Seavey <jwseavey@norseaconsulting.com>
Karl Vogel <vogelke@c17mis.region2.wpafb.af.mil>
Mark Bergman <bergman@phri.nyu.edu>
===Original question===>
We have a variety of Sun servers which monitor via Swatch, a Perl program,
which some of you may be familiar. Right now, I start it up manually
as a regular user. Now i am wondering if this could be started by an rc
file on boot, and then proceed as a detached process. The question is
thus, "what makes a daemon a daemon under solaris; and can it be done in
Perl?"
If anybody has done such a similar tweak, I would surely like to know
<----Gregory Coleman -- Library & Center for Knowledge Management -- UCSF---->
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:12:30 CDT