You can send a broadcast message to users who are logged in on Linux Terminals by following the instructions in a tutorial published by Linux Shell Tips.

How to Send Broadcast Message to Logged-in Users on Linux Terminals

Linux is a multi-user operating system that allows multiple users to log in and use the system. This implies that at any given time, you might have several users logged in.

Sometimes, you might need to send a message or notification to all the users without necessarily placing a phone call or sending them emails. This is mostly when you want to announce a maintenance task or instruct them to log out.

How to Send Broadcast Message to Logged-in Users on Linux Terminals