|WALL(1)||General Commands Manual||WALL(1)|
wall — write a
message to users
wall displays the contents of
file, or, by default, its standard input, 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:
Since the sender's locale(1)
need not match the receivers' locales,
deliberately ignores the
variable and allows ASCII printable and space characters only. Non-printable
characters and UTF-8 characters are replaced with question marks.
wall command appeared in
Version 7 AT&T UNIX.
|May 8, 2016||OpenBSD-current|