opt login is a command used to login via the CLI.
$ opt login [option]
Execute the command.
$ opt login
You will be prompted to enter your username, so please input the username you set during registration.
Username:
You will be prompted to enter your password, so please input it accurately. For security reasons, the password will not be displayed.
$ opt login
Username:*****
Password:
If the message Hello 'ユーザー名'. Successfully signed in. appears, the authentication is complete. If the message Login failed. Please check your Username or Password.appears, it indicates that either the username or password is incorrect, or the email address has not been verified. Please verify the correct information and try entering it again.