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Write (Unix)

Unix command to send messages to another user by writing directly to their terminal From Wikipedia, the free encyclopedia

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In Unix and Unix-like operating systems, write is a utility used to send messages to another user by writing a message directly to another user's TTY.[1]

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History

The write command was included in the First Edition of the Research Unix operating system.[2] A similar command appeared in Compatible Time-Sharing System.[3]

Sample usage

The syntax for the write command is:

$ write user [tty]
message

The write session is terminated by sending EOF, which can be done by pressing Ctrl+D. The tty argument is only necessary when a user is logged into more than one terminal.[4]

A conversation initiated between two users on the same machine:

$ write root pts/7
test

Will show up to the user on that console as:

Message from root@wiki on pts/8 at 11:19 ...
test
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See also

References

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