Re: [gentoo-user] OT: bash scripting: implement uninterruptable sleep

[Sascha Lucas]

Hi,

On Tue, 28 Mar 2006, Richard Fish wrote:


On 3/28/06, Sascha Lucas [EMAIL PROTECTED] wrote:

I have a shell script and want a uninterruptable sleep. /usr/bin/sleep
itself seems to have its own signal handlers. How is it possible to sleep
uninterruptable?


trap echo 'Ctrl+C should not work' INT
now=`date +%s`
expires=$(( $now + 10 ))
while test $now -lt $expires; do
   sleep $(( $expires - $now ))
   now=`date +%s`
done


excellent! take system time and loop sleep until time is over.

Thanks,

Sascha.
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[gentoo-user] OT: bash scripting: implement uninterruptable sleep

[Sascha Lucas]

Hi List,

I have a shell script and want a uninterruptable sleep. /usr/bin/sleep 
itself seems to have its own signal handlers. How is it possible to sleep 
uninterruptable?


#!/bin/bash
trap echo 'Ctrl+C should not work' INT

for foo in 1 2 3; do
echo $foo
sleep 10
done
## end of script

TIA,

Sascha.
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Re: [gentoo-user] OT: bash scripting: implement uninterruptable sleep

[Richard Fish]

On 3/28/06, Sascha Lucas [EMAIL PROTECTED] wrote:
 Hi List,

 I have a shell script and want a uninterruptable sleep. /usr/bin/sleep
 itself seems to have its own signal handlers. How is it possible to sleep
 uninterruptable?

trap echo 'Ctrl+C should not work' INT
now=`date +%s`
expires=$(( $now + 10 ))
while test $now -lt $expires; do
sleep $(( $expires - $now ))
now=`date +%s`
done

-Richard

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