Answers for "mysql connect to a connection from terminal"

mysql command line connect

version: mysql 8.0

mysql --host=localhost --user=myname --password=password mydb

or:
mysql -h localhost -u myname -p password mydb

TO install mysql shell:
https://dev.mysql.com/doc/mysql-shell/8.0/en/mysql-shell-install.html

connect mysql command line

mysql --host=localhost --port=myport --user=myname --password
mysql -h localhost -u myname -p --port=myport