|WALL(1)||General Commands Manual||WALL(1)|
walldisplays 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:
walldeliberately ignores the
LC_CTYPEenvironment variable and allows ASCII printable and space characters only. Non-printable characters and UTF-8 characters are replaced with question marks. mesg(1), talk(1), write(1), shutdown(8)
wallcommand appeared in Version 7 AT&T UNIX.
|May 8, 2016||OpenBSD-current|