WRITE(1) GENIX Programmer's Manual WRITE(1)
NAME
write - write to another user
SYNOPSIS
write user [ ttyname ]
DESCRIPTION
Write copies lines from your terminal to that of another user. When
first called, it sends the message
Message from yourname yourttyname...
The recipient of the message should write back at this point. Com-
munication continues until an end of file is read from the terminal
or an interrupt is sent. At that point write writes `EOT' on the
other terminal and exits.
If you want to write to a user who is logged in more than once, the
ttyname argument may be used to indicate the appropriate terminal
name.
Permission to write may be denied or granted by use of the mesg com-
mand. At the outset writing is allowed. Certain commands, in par-
ticular nroff and pr(1) disallow messages in order to prevent messy
output.
If the character `!' is found at the beginning of a line, write
calls the shell to execute the rest of the line as a command.
The following protocol is suggested for using write: when you first
write to another user, wait for him to write back before starting to
send. Each party should end each message with a distinctive
signal-(o) for `over' is conventional-that the other may reply.
(oo) for `over and out' is suggested when conversation is about to
be terminated.
FILES
/etc/utmp to find user
/bin/sh to execute `!'
SEE ALSO
mesg(1), who(1), mail(1)
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