Date: Wed, 16 Jul 2014 10:31:22 +0100 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: freebsd-questions@freebsd.org Subject: sh 'sleep' and trap? Message-ID: <917611ACD1C0644B793C5B81@Mail-PC.tdx.co.uk>
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Hi All,
I have a script, similar to this:
"
#!/bin/sh
echo $$ >/var/run/mypid.pid
trap "rm /var/run/mypid.pid; exit 0" EXIT
while [ 1 ]
do
do_stuff
sleep 60
done
"
This works - but an attempt to 'kill' it, e.g.
kill `head -1 /var/run/mypid.pid`
Takes up to 60 seconds, before 'sleep' completes, control returns back to
the shell - which see's the signal, and quits.
Is there a better way of doing this? - i.e. some way the shell can 'pass
time' but still receive signals in a timely manner?
The only work around I could come up with was to change the 'sleep 60' into
a loop that does 60 * 1 second sleeps, not ideal though :(
Cheers,
-Karl
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