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- .th WRITE I 8/5/73
- .sh NAME
- write \*- write to another user
- .sh SYNOPSIS
- .bd write
- user [ ttyno ]
- .sh DESCRIPTION
- .it Write
- copies lines from your typewriter to that of
- another user.
- When first called,
- it sends the message
- .s3
- message from yourname...
- .s3
- The recipient of the message should write back at this point.
- Communication continues until an end of file is
- read from the typewriter or an interrupt is sent.
- At that point
- .it write
- writes `EOT' on the other terminal and exits.
- .s3
- If you want to write to a user who is logged in more than once,
- the
- .it ttyno
- argument may be used to indicate the last character
- of the appropriate typewriter name.
- .s3
- Permission to write may be denied or granted by use of the
- .it mesg
- command.
- At the outset writing is allowed.
- Certain commands, in particular
- .it roff
- and
- .it pr,
- disallow
- messages in order to prevent messy output.
- .s3
- If the character `!' is found at the beginning of a line,
- .it write
- calls the shell
- to execute the rest of the
- line as a command.
- .s3
- The following protocol is suggested for using
- .it 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
- (
- .bd (o)
- for `over' is conventional) that the other may reply.
- .bd (oo)
- (for `over and out') is suggested when conversation
- is about to be terminated.
- .sh FILES
- /etc/utmp to find user
- .br
- /bin/sh to execute `!'
- .sh "SEE ALSO"
- mesg (I), who (I), mail (I)
- .sh BUGS
-