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On Mon, 28 May 2007 20:54:27 +0100 |
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Mick <michaelkintzios@×××××.com> wrote: |
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> On Monday 28 May 2007 20:14, Albert Hopkins wrote: |
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> > On Mon, 2007-05-28 at 18:52 +0100, Mick wrote: |
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> |
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> > > What is the way to send a console warning to anyone logged on a |
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> > > machine before I reboot it? |
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> > |
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> > shutdown(8) does this for you. In addition there is wall(1). |
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> |
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> Of course wall! I had forgotten about that. There's also talk to tap |
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> others on the shoulder. I assume all these will work if logged onto |
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> a server via ssh? |
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> |
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> > > If the user is logged on a console I will only need to send it to |
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> > > the console; in addition if the user is running webmin, or |
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> > > phpadmin, then I would really like a popup of sorts to alert them |
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> > > to log out (something like the net send command on MS Windows |
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> > > running with the messenger service). |
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> > |
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> > I could give a long explanation on why in practice this never works |
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> > (even for wall msgs), but it's not interesting. Instead I'll give |
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> > you some real-world examples of what I've seen. |
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> [snip...] |
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> |
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> Thank you for a very informative insight. :) |
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Yes, it should work at ssh terminals too. My test verifies. |
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A. Hopkins is right though; even if everyone _did_ work at the |
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terminal, and not say at the screen, people using ncurses or redrawing |
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the screen often at any rate could miss a wall message. |
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-- |
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