Drush: how to set access to MySQL When I run command "drush status" I cannot see any MySQL settings (user, password or database). 

I cannot use commands like "core-quick-drupal" because it requires access to MySQL, before /sites/default/settings.php is created. 

How can I set such MySQL connection?

I have installed drush in linux in directory /user/share/php

When I install Drupal from web browser interface, I can see that database support is enabled. I have problem only when installing drupal via drush
core-quick-drupal doesn't require mysql, it would use something like sqlite. drush site-install allows you to specify config options like the mysql connection.  For example:

drush site-install mysite --db-url=mysql://user:pass@server/dbname