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Man Pages


Manual Reference Pages  -  WALL (1)

NAME

wall - write a message to users

CONTENTS

Synopsis
Description
See Also
History
Bugs

SYNOPSIS

wall [-g group] [file]

DESCRIPTION

The wall utility 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.

SEE ALSO

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

HISTORY

A wall command appeared in PWB UNIX.

BUGS

The sender’s LC_CTYPE setting is used to determine which characters are safe to write to a terminal, not the receiver’s (which wall has no way of knowing).
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