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- WWWWAAAALLLLLLLL((((1111)))) WWWWAAAALLLLLLLL((((1111))))
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- NNNNAAAAMMMMEEEE
- wall - write to all users
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ////ssssbbbbiiiinnnn////wwwwaaaallllllll [[[[----gggg ggggrrrroooouuuupppp]]]] [[[[mmmmssssgggg____ffffiiiilllleeee]]]]
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _w_a_l_l reads _m_s_g__f_i_l_e (or its standard input if none specified) until an
- end-of-file. It then sends this message to all currently logged-in users
- preceded by:
-
- Broadcast Message from ............
-
- If the -_g option is used then only those users in the specified group as
- defined in the file ////eeeettttcccc////ggggrrrroooouuuupppp or the NIS _g_r_o_u_p map are sent the message.
- The list of logged-on users is derived from the file ////vvvvaaaarrrr////aaaaddddmmmm////uuuuttttmmmmpppp.
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- It is used to warn all users, typically prior to shutting down the
- system.
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- The sender must be super-user to override any protections the users may
- have invoked (see _m_e_s_g(1)).
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- NNNNOOOOTTTTEEEE
- _w_a_l_l does not send messages to _f_t_p users.
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- FFFFIIIILLLLEEEESSSS
- /dev/*
- /var/adm/utmp
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- mesg(1), write(1), who(1).
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- DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
- ``Cannot send to ...'' when the open on a user's tty file fails.
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- PPPPaaaaggggeeee 1111
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