Your friend BOB
Wm E Davidsen Jr
davidsen at crdos1.crd.ge.COM
Sat Nov 18 07:57:00 AEST 1989
Someone was asking about a way to do screen blank on Xenix. I have a
suggestion, like BOB do it. BOB is a TLA for "Black on Black". Here's
how it works:
1. set the current foreground and background to black
2. move the cursor to the top of the screen
3. clear to end of screen
I have one virtual terminal with no getty, and I BOB it at boot. Then
I can manually or automatically change screens to that screen when the
lowest idle time from "who -u" gets over your personal choice.
You can also set the screen colors back to your favorite as long as
nothing writes to the screen.
Here's BOB in ANSI:
echo "\033[30;40m\033[H\033[J\c" > /dev/tty11
and to set screen 11:
echo "\033[10z\c"
Hope this helps some one. If you have an old console device driver you
may have to replace the color sequence "\033[30;40m" with
"\033[30m\033[40m" to make it work.
Someone could drop me mail and tell me if this still works on SCO UNIX
as well.
--
bill davidsen (davidsen at crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen)
"The world is filled with fools. They blindly follow their so-called
'reason' in the face of the church and common sense. Any fool can see
that the world is flat!" - anon
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