On Apr 10, 2000 at 17:59, Siddharth Dalal wrote:
>What is this?
>>sleep 3h;ppp-blit;sleep 3h;ppp-blit;beep-on` before going to sleep.
That's a long command line. man sleep, you'll get a clue. Basically this
line tells Linus[0] to wait 3 hours, run ppp-blit (which happens to be the
following script), wait another three hours, run ppp-blit again, then run
beep-on which is presumably (presumption is correct) a program. (A C
program to go 'beep').
>Not that I understood this either...
Ah, this one is a hack...
>#!/bin/sh
Shebang line tells the program that's executing the script (in this case,
the progam is bash -- my shell) to use /bin/sh (which happens to be a
primitive but large and standard shell) to interpret the rest of the file.
>sleep 1;
Wait 1 second (sleep's default unit: seconds).
>if [ -e /root/ppp-blit.lck ]
>then
If /root/pp-blit.lck already exists then...
>echo ppp0 already up
...throw an error and cry...
>else
>echo Bringing up ppp0
...else say I'm connecting to the net...
>echo Blitting email and news > /root/ppp-blit.lck
... create an informative lock file (this is referenced in my
ip-up.local script)...
>ifup ppp0
... and bring up the net connection.
>fi
fo fum.
[0] Deliberate typo. fnord.
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