tldr/pages/linux/write.md

write

Write a message on the terminal of a specified logged in user (ctrl-C to stop writing messages). To find out all terminal_ids of all users active on the system see the 'who' command.

• Send a message to user {{username}} on terminal {{terminal_id}}:

write {{username}} {{terminal_id}}

• Send message to user 'testuser' on terminal /dev/tty/5:

write {{testuser}} {{tty/5}}

• Send message to user 'jhondoe' on pseudo terminal /dev/pts/5:

write {{jhondoe}} {{pts/5}}