NAME
SYNOPSIS
DESCRIPTION
displays the contents of
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.
Reading from a file is refused when the invoker is not superuser
and the program is suid or sgid.
SEE ALSO
HISTORY
A
command appeared in
AVAILABILITY
The wall command is part of the util-linux-ng package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.