tldr/pages/common/write.md

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# write
> Write a message on the terminal of a specified logged in user (ctrl-C to stop writing messages).
> Use the `who` command to find out all terminal_ids of all active users active on the system. See also `mesg`.
- Send a message to a given user on a given terminal id:
`write {{username}} {{terminal_id}}`
- Send message to "testuser" on terminal "/dev/tty/5":
`write {{testuser}} {{tty/5}}`
- Send message to "jhondoe" on pseudo terminal "/dev/pts/5":
`write {{jhondoe}} {{pts/5}}`