wall(1)

NAME

wall - write a message to users

SYNOPSIS

wall 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 messages.

SEE ALSO

mesg (1) , talk (1) , write (1) , shutdown (8)

HISTORY

A Wall command appeared in Version 7 AT&T UNIX.