Gustav Schaffter wrote:
> Hi,
>
> In my rc.local I start two instances of setiathome.
>
> When I do a shutdown, I'd like those two processes to be automatically
> killed *before* the shutdown sequence starts. (I'd also like to execute
> a quick non related 'cleanup' sequence.)
>
> Is there any rc file where I could store some kill `pidof setiathome`
> commands? A file where I could store any commands that should be
> executed first, in a shutdown situation? Some kind of logically
> 'inverted rc.local'?
>
rc.local gives me nightmares. I used to administer these old SunOS 4.1.4
boxes (until entirely too recently), and there was no System V startup for
that lame-o operating system. Everything had to be done in the /etc/rc.ip
/etc/rc and /etc/rc.local
The fun thing about these scripts is that if you screwed up line 2, then
the program would exit at line 3. And any extra programs that were
supposed to get started around line 10 wouldn't. So after a reboot, the
webserver would mysteriously not start up, even though it was in the
/etc/rc.local.
And the most fun thing about that version of bourne shell is that there is
no way to test the program without execution. So the only way to really
test the script's sanity is to reboot. And your services may or may not
start.
rc.local is evil. Avoid it. Learn how to use System V startup scripts.
It's painful, but worth it.
in the /etc/rc.d/ directory, you will find bunches of bourne (again) shell
programs.
Each one of these is a neat tidy package to start and stop a service. The
syntax is
/etc/rc.d/init.d/progname start
or
/etc/rc.d/init.d/progname stop
I don't have setiathome, but I wrote a feeble little start/stop script for
you. No guarantees it'll work, though.
After you get this, read 'man init'
#!/bin/sh
#
# Startup script for setiathome
#
# processname: setiathome
# Source function library.
. /etc/rc.d/init.d/functions
# See how we were called.
case "$1" in
start)
echo -n "Starting setiathome: "
cd /home/pietb/setiathome
./setiathome &
echo
;;
stop)
echo -n "Shutting down setiathome: "
killproc setiathome
echo
;;
status)
ps -ef |grep setiathome |grep -v 'grep'
;;
restart)
$0 stop
$0 start
;;
reload)
echo -n "Reloading setiathome: "
killproc setiathome -HUP
echo
;;
*)
echo "Usage: $0 {start|stop|restart|reload|status}"
exit 1
esac
exit 0
