SysV Level Change Functionality

• On a Switch to Runlevel <n>
• Execute scripts starting with K in /etc/rc<n>.d/
• Alphabetical Order
• Single Argument of stop
• Execute scripts starting with S in /etc/rc<n>.d/
• Alphabetical Order
• Single Argument of start

Typically scripts in /etc/rc<n>.d link to scripts in /etc/init.d/

Let’s visit the different runlevel directories and see what is there

RUNLEVEL

Kill

Start