# 2.11BSD#431 - /usr/man/cat1/write.0

    WRITE(1)	    UNIX 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@yoursystem on yourttyname at
         time...

         The recipient of the message should write back at this
         point.  Communication 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 command.  At the outset writing is allowed.  Certain
         commands, in particular 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 sug-
         gested when conversation is about to be terminated.

    FILES
         /var/run/utmp  to find user
         /bin/sh	    to execute `!'

    SEE ALSO
         mesg(1), who(1), mail(1)

    Printed 11/26/99	November 27, 1996			1

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