wall - write a message to users
wall [-g group] [file]
wall displays the contents of file, or, by default, its
on the terminals of all currently logged in users.
Only the superuser can write on the terminals of users who
have chosen to
deny messages or are using a program which automatically denies messages.
The options are as follows:
-g Send messages to users in this group. This option
may be specified
multiple times, and any user in any of the
will receive the message.
mesg(1), talk(1), write(1), shutdown(8)
A wall command appeared in Version 7 AT&T UNIX.
OpenBSD 3.6 June 6, 1993
[ Back ]