WALL

Section: User Commands (1)
Updated: April 29, 1985
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NAME

wall - write to all users  

SYNOPSIS

wall  

DESCRIPTION

Wall reads its standard input until an end-of-file. It then sends this message, preceded by `Broadcast Message ...', to all logged in users.

The sender should be super-user to override any protections the users may have invoked.  

FILES

/dev/tty?
/etc/utmp  

SEE ALSO

mesg(1), write(1)  

DIAGNOSTICS

`Cannot send to ...' when the open on a user's tty file fails.


 

Index

NAME
SYNOPSIS
DESCRIPTION
FILES
SEE ALSO
DIAGNOSTICS

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