I recently upgraded my system to Ubuntu 16.04 (including upgrade to MySQL 5.7). Some scripts (for backup) were running silently before but now, I got:
[Warning]: Using a password on the command line interface can be insecure
The offending line is the following, in a script in cron.daily:
mysqldump -uMyUser -pMyPasswd --single-transaction --databases $db > $file
Is it just an new warning from MySQL (= this situation is not new but is now warned) or is something more serious to be taken into account? I want to know if I can ignore this warning or not.