instalaciones desatendidas

mysql (ubuntu xenial) - https://coderwall.com/p/axokwa/mysql-5-7-silent-install-on-ubuntu-16:

MYSQL_ROOT_PASSWORD="toor"
 
sudo apt-get -y update
sudo apt-get -y upgrade
 
echo "mysql-server mysql-server/root_password password $MYSQL_ROOT_PASSWORD" | debconf-set-selections
echo "mysql-server mysql-server/root_password_again password $MYSQL_ROOT_PASSWORD" | debconf-set-selections
sudo apt-get -y install mysql-server-5.7