Knowing the rc.d system

[Kenneth Porter]

--On Friday, September 24, 2004 3:18 PM -0700 Steve Magee 
<smagee at arb.ca.gov> wrote:

> Can someone point me to a site that will explain when the K or S links
> are executed?  What relation the /var/lock/subsys/filename have when
> the K or S links are run?  Who manages the /var/lock/subsys/filename
> directory; e.g. /etc/init.d/filename or S99killall?

Start with "man telinit". (telinit is the command you use to change 
runlevels, and is hard-linked to init.) Then inspect /etc/inittab. Look at 
the script /etc/rc.d/rc, which invokes the K and S scripts. Look at 
/etc/rc.d/init.d/functions, which is a library of common functions 
available to the initscripts. Use chkconfig or ntsysv to create/destroy the 
symlinks in the rc.d subdirectories, based on a special shell comment in 
the script's header.