how to open mysql in ubuntu code example

Example 1: install mysql ubuntu

sudo apt install mysql-server

Example 2: start mysql server linux terminal

sudo /etc/init.d/mysql start
or 
systemctl start mysql.service

Example 3: setup mysql ubuntu

sudo apt install mysql-server
sudo mysql_secure_installation utility

Example 4: open mysql in ubuntu terminal

mysql -u root -p

Example 5: mysql enter ubuntu

mysql -u root -p