Waiting for mysql to start?

Question

bash

The question is how to make mysql start waiting, if it gets up, then the launch of the following script

Answer 1

Yes, it's trite, you make a loop in which you execute a simple sql query every few seconds, and if it was successful, you exit the loop.
You can add a timeout to the loop by which to complete the script with an error.
ps In general, more details are needed. If you need autostart at system startup, then you can specify the dependency through systemd.

Answer 2

команда && вторая команда
&& - if labor is over
|| -if the command ended in a crash