unix sleep and date commands

[fanco]

please help me to fix my script trying to use sleep 2 minutes while the system is sleeping i want to print out same message every 5 seconds
thanks
t=`date +%S`

while [ t = t+120 ]
do
sleep 5

echo "this program will end in 2 minute"
done

[michaewlewis]

I don't know if you can make a computer do anything while it is sleeping. It usually pauses all processes so it can enter a low power state.
You're not trying to create a screensaver are you?

[Deerpark]

It's not that kind of sleeping michaewlewis... its a sleep command in a script.
I.e. he wants the script to pause for a set time.

fanco it would probably help with some more details... including what kind of scripting language you're using.

[ghostdog74]

please help me to fix my script trying to use sleep 2 minutes while the system is sleeping i want to print out same message every 5 seconds
thanks
t=`date +%S`

while [ t = t+120 ]
do
sleep 5

echo "this program will end in 2 minute"
done

Code: [Select]

t=$(date +%S)
t=`echo $t+120 |bc`
echo "this program will end in 2 minutes from now"
sleep $t
exit