How to make a script run loop in screen?

Question

linux

Hello.
In screen, you need to loop one script so that it restarts every 30 minutes.
Googled and found only this:

while true; do
  ./usr/local/new/new.sh
  sleep 10
done

But this command doesn't work. Work in the console.

Answer 1

In the first 30 minutes it is "1800"
In the second, such things are done through cron, if you need the output of the script, then redirecting to a file will help you.