talk

A visual communication program which copies lines from your terminal to that of another user. More information: https://www.gnu.org/software/inetutils/manual/html_node/talk-invocation.html.

Start a talk session with a user on the same machine:

talk {{username}}

Start a talk session with a user on the same machine, who is logged in on tty3:

talk {{username}} {{tty3}}

Start a talk session with a user on a remote machine:

talk {{username}}@{{hostname}}

Clear text on both terminal screens:

<Ctrl>+D

Exit the talk session:

<Ctrl>+C