Manual page for WALL(1)
wall - write to all users logged in
SYNOPSIS
wall
[
-a
]
[ filename ]
DESCRIPTION
wall
reads the standard input until an
EOF.
It then sends this message, preceded by
`Broadcast Message ...',
to all logged in users. If
filename
is given, then the message is read in from that file.
Normally, pseudo-terminals that do not correspond to
rlogin sessions are ignored.
Thus when in
sunview.1
the message appears only on the console window. However,
-a
will send the message even to such
pseudo-terminals.
The sender should be super-user to override
any protections the users may have invoked.
FILES
- /dev/tty?
-
- /etc/utmp
-
SEE ALSO
mesg.1
sunview.1
write.1
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97