[unix-history] / usr / src / usr.bin / wall / wall.1

.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved.  The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\"	@(#)wall.1	5.1 (Berkeley) %G%
.\"
.TH WALL 1 "18 January 1983"
.UC 4
.SH NAME
wall \- write to all users
.SH SYNOPSIS
.B wall
.SH DESCRIPTION
.I Wall
reads its standard input until an end-of-file.
It then sends this message,
preceded by
`Broadcast Message ...',
to all logged in users.
.PP
The sender should be super-user to override
any protections the users may have invoked.
.SH FILES
/dev/tty?
.br
/etc/utmp
.SH "SEE ALSO"
mesg(1), write(1)
.SH DIAGNOSTICS
`Cannot send to ...' when the open on
a user's tty file fails.
Commit	Line	Data
768d351d KM	1	.\" Copyright (c) 1980 Regents of the University of California.
	2	.\" All rights reserved. The Berkeley software License Agreement
	3	.\" specifies the terms and conditions for redistribution.
	4	.\"
c2bf52f1	5	.\" @(#)wall.1 5.1 (Berkeley) %G%
768d351d	6	.\"
c2bf52f1	7	.TH WALL 1 "18 January 1983"
768d351d KM	8	.UC 4
	9	.SH NAME
	10	wall \- write to all users
	11	.SH SYNOPSIS
	12	.B wall
	13	.SH DESCRIPTION
	14	.I Wall
	15	reads its standard input until an end-of-file.
	16	It then sends this message,
	17	preceded by
	18	`Broadcast Message ...',
	19	to all logged in users.
	20	.PP
	21	The sender should be super-user to override
	22	any protections the users may have invoked.
	23	.SH FILES
	24	/dev/tty?
	25	.br
	26	/etc/utmp
	27	.SH "SEE ALSO"
	28	mesg(1), write(1)
	29	.SH DIAGNOSTICS
	30	`Cannot send to ...' when the open on
	31	a user's tty file fails.