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tldr/pages/linux/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).
> To find out all terminal_ids of all users active on the system see the 'who' command.
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- Send a message to user {{username}} on terminal {{terminal_id}}:
`write {{username}} {{terminal_id}}`
- Send message to user 'testuser' on terminal /dev/tty/5:
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`write {{testuser}} {{tty/5}}`
- Send message to user 'jhondoe' on pseudo terminal /dev/pts/5:
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`write {{jhondoe}} {{pts/5}}`