GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v6 |
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wall(8) |
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wall write to all users reads its standard input until an end-of-file. It then sends this message to all currently logged in users preceded by ‘‘Broadcast Message ...’’. It is used to warn all users, typically prior to shutting down the system. The sender should be super-user to override any protections the users may have invoked. /dev/tty? mesg (I), write (I) ‘‘Cannot send to ...’’ when the open on a user’s tty file fails.
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wall(8) | |