Recently I needed to know if mysql is using any config (.cfg) except default one (/etc/my.cfg).
This command allows to check things quickly:
strace mysql ";" 2>&1 | grep cnf
My main background for a recent years is MySQL DEV/DBA engineer but I’m also participating in wider range of tasks which could be likely called as DataOps/DevOps tasks. You can see my online CV here: http://catyellow.net