Heroku how to connect to an existing app?

Question

Heroku

I need to connect to an existing app via the Heroku CLI. So that it would be possible to go into the bash.
I tried to google, for any request it gives a standard instruction, log in and create a new application.

Answer 1

heroku ps:exec --app <имя приложения>

Answer 2

heroku console -a app_name