WALL(1)                 FreeBSD General Commands Manual                WALL(1)

NAME

     wall - write a message to users

SYNOPSIS

     wall [-g group] [file]

DESCRIPTION

     The wall utility 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
     messages.

     -g      Send messages to users in this group.  This option may be
             specified 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 PWB UNIX.

BUGS

     The sender's LC_CTYPE setting is used to determine which characters are
     safe to write to a terminal, not the receiver's (which wall has no way of
     knowing).

FreeBSD 15.1-STABLE-HBSD       February 24, 2012                       WALL(1)