From: Victor Nazarov <vir@comtv.ru>
To: 9fans@cse.psu.edu
Subject: [9fans] rc scripting questions
Date: Mon, 19 Sep 2005 01:36:52 +0400 [thread overview]
Message-ID: <432DDDF4.1000402@comtv.ru> (raw)
Hello.
I use plan9 with drawterm under ms windows. I know the system very
partial. So I'd like to ask some questions about rc scripting.
1) Rc seems to create new processes in the same process group as itself.
So for example child process share it's environment variables with it's
parent (rc). Is it wise? Any unix like scripts need to call rfork as
their first command. Why is it so?
2) I'd like to get random numbers in rc script, but awk 'BEGIN { print
rand }' allways give the same number. How can I get random numbers in rc
scripts?
3) Is there any concept like unix sessions in plan9? If I cpu into the
cpu server any program I've started will run until it suicide. Is it
right? What should I do to end my drawterm session? How can I kill every
process I've stated?
--
Victor Nazarov
http://vir.comtv.ru/
vir@comtv.ru
next reply other threads:[~2005-09-18 21:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-18 21:36 Victor Nazarov [this message]
2005-09-19 0:40 ` Russ Cox
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