Manual browser: wall(1)

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WALL(1) General Commands Manual WALL(1)

NAME

wallwrite a message to users

SYNOPSIS

wall [-g group] [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.

-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.

HISTORY

A wall command appeared in Version 7 AT&T UNIX. Support for -g was added in NetBSD 2.0 (from OpenBSD 2.0).
March 27, 2003 NetBSD 7.0