Network
The wall command
Sends a message to every terminal of the logged-in users.
Copy-ready examples
$ wall Aviso: reinicio en 5 minutosNotify everyoneYou can try them in the browser terminal: it does not touch your computer.
Typical mistakes
- It needs permission to write to other users' terminals.
FAQ
What does wall do?
It sends a message to every open terminal on the system.
Does it need sudo?
Not always: on many systems any user can broadcast a notice.
More Network commands
Learn to actually use it
The basic Linux course takes you from zero to console fluency with 24 self-grading lessons.
Start the free course