1WALL(1M)                                                              WALL(1M)
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NAME

6       wall  -  write to all users
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SYNOPSIS

9       /etc/wall
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DESCRIPTION

12       Wall reads its standard input until an end-of-file.  It then sends this
13       message, preceded by `Broadcast Message ...', to all logged in users.
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15       The sender should be super-user to override any protections  the  users
16       may have invoked.
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FILES

19       /dev/tty?
20       /etc/utmp
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SEE ALSO

23       mesg(1), write(1)
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DIAGNOSTICS

26       `Cannot send to ...' when the open on a user's tty file fails.
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30                                                                      WALL(1M)