These instructions assume that PHP, Mysql / MariaDB, and Apache have already been setup on the Ubuntu 16.04 installation, and instructions for such preparation can be found here: Setting Up Apache 2.4, MariaDB, and PHP 7 with Ubuntu 16.04 on a Digital Ocean VPS.
curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.pharphp wp-cli.phar --infochmod +x wp-cli.pharsudo mv wp-cli.phar /usr/local/bin/wpmysql -u root -p -ve "create database test"mysql -u root -p -ve "create user 'test_user'@'localhost' identified by 'password'"mysql -u root -p -ve "grant all privileges on test.* to 'test_user'@'localhost'"mysql -u root -p -ve "flush privileges"mkdir wordpress && cd wordpresswp core downloadwp core config --dbname=test --dbuser=test_user --dbpass="password"wp core install --url="localhost/wp" --title="Test" --admin_user="admin" --admin_password="password" --admin_email="user@domain.com"rm wp-config-sample.phpdefine('FS_METHOD', 'direct'); to wp-config.phpwp plugin install wordpress-seo --activatewp theme install thebesttheme --activatewp theme delete twentyfourteenwp theme delete twentyfifteenwp theme delete twentysixteensudo mv wordpress/ /var/www/sudo chown -R ubuntu:www-data /var/www/wordpress/setgid bit to cause new files to inherit group of parent directory: sudo find /var/www/wordpress/ -type d -exec chmod g+s {} \;wp-content directory: sudo chmod g+w /var/www/wordpress/wp-contentwp-content/themes directory: sudo chmod -R g+w /var/www/wordpress/wp-content/themeswp-content/plugins directory: sudo chmod -R g+w /var/www/wordpress/wp-content/pluginsVirtualHost: sudo a2ensite wordpress.confsudo systemctl restart apache2.service