I have the pid and I just stopped a program using
kill -stop PID
Now I want to continue it by doing
kill -cont PID
But only if it's already stopped. How would I check to see if it's stopped or running?
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you say a program in the title, so you mean the name or you mean the PID like in the example?aurelien– aurelien2016-11-06 15:54:54 +00:00Commented Nov 6, 2016 at 15:54
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Do you want to continue it in the foreground (grabbing the terminal) or in the background?Eric Towers– Eric Towers2016-11-06 15:57:37 +00:00Commented Nov 6, 2016 at 15:57
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3 Answers
You can check whether the process is in stopped state, T is ps output.
You can do:
[ "$(ps -o state= -p PID)" = T ] && kill -CONT PID
[ "$(ps -o state= -p PID)" = T ]tests whether the output ofps -o state= -p PIDisT, if so sendSIGCONTto the process. Replace PID with the actual process ID of the process.
Another way would be
pid=1
status=`cat /proc/$pid/wchan`
if [ "$status" == "do_signal_stop" ] ; then
echo "$pid sleeps: $status"
else
echo "$pid does not sleep: $status"
fi
ps -e | grep | PROGRAM
or
while true;
do
kill program
done
wait
