How to run an eternal process in Linux?

Question

linux

#!/bin/bash
while true;
do /usr/bin/php7.2 index.php;
sleep 1;
done

Guys, with this code I'm polling some api, which allows you to send requests once a second. How can I run this process in the background in Linux "forever", so that when I close the terminal window with ssh, it still works in the background. And then how to slow it down if necessary?

Answer 1

nohup parser.sh &

Answer 2

systemd please.

Answer 3

1. About the ampersand
   
2. About screen
   

Answer 4

use supervisor, if the script crashes then the supervisor will pick it up

Answer 5

if this is meant forever, then write a daemon script for your init system and let it work under its supervision.
start/stop/status through the initialization system.

Answer 6

Fork bomb