Write (Unix)
Unix command to send messages to another user by writing directly to their terminal
From Wikipedia, the free encyclopedia
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]
| write | |
|---|---|
| Original authors | Dennis Ritchie, Ken Thompson |
| Developer | AT&T Bell Laboratories |
| Initial release | November 3, 1971 |
| Operating system | Unix and Unix-like |
| Platform | Cross-platform |
| Type | Command |
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
See also
