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wall [-g group] [file]
DESCRIPTION
Wall displays the contents of file or, by default, its standard input, on
the terminals of all currently logged in users.
Only the super-user can write on the terminals of users who have chosen
to deny messages or are using a program which automatically denies mes-
sages.
-g Send messages to users in this group. This option may be speci-
fied multiple times, and any user in any of the specified groups
will receive the message.
SEE ALSO
mesg(1), talk(1), write(1), shutdown(8)
HISTORY
A wall command appeared in Version 7 AT&T UNIX.
4th Berkeley Distribution June 6, 1993 1
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