GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v7 |
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wall(1m) |
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wall − write to all users
/etc/wall
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.
/dev/tty?
/etc/utmp
mesg(1), write(1)
’Cannot send to ...’ when the open on a user’s tty file fails.
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wall(1m) | |