Gentoo Archives: gentoo-user

From:	Sascha Lucas <sascha.lucas@×××××××××××××××××.de>
To:	gentoo-user@l.g.o
Subject:	Re: [gentoo-user] OT: bash scripting: implement uninterruptable sleep
Date:	Fri, 31 Mar 2006 09:16:00
Message-Id:	`Pine.LNX.4.64.0603311103010.30880@tragbb.ehf.hav-fghggtneg.qr`
In Reply to:	Re: [gentoo-user] OT: bash scripting: implement uninterruptable sleep by Richard Fish

1	Hi,
2
3	On Tue, 28 Mar 2006, Richard Fish wrote:
4
5	> On 3/28/06, Sascha Lucas <sascha.lucas@×××××××××××××××××.de> wrote:
6	>> I have a shell script and want a uninterruptable sleep. /usr/bin/sleep
7	>> itself seems to have its own signal handlers. How is it possible to sleep
8	>> uninterruptable?
9	>
10	> trap "echo 'Ctrl+C should not work'" INT
11	> now=`date +%s`
12	> expires=$(( $now + 10 ))
13	> while test $now -lt $expires; do
14	> sleep $(( $expires - $now ))
15	> now=`date +%s`
16	> done
17
18	excellent! take system time and loop sleep until time is over.
19
20	Thanks,
21
22	Sascha.
23	--
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