kernel

What Kernel Is?

Kernel is heart of Linux Os.

It manages resource of Linux Os. Resources means facilities available in Linux. For e.g. Facility to store data, print data on printer, memory, file management etc .

Kernel decides who will use this resource, for how long and when. It runs your programs (or set up to execute binary files).

The kernel acts as an intermediary between the computer hardware and various programs/application/shell.

steps how linux will access the permissions

It's Memory resident portion of Linux. It performance following task :-

• I/O management

• Process management

• Device management

• File management

• Memory management

so now on seeing the fig you should have to come to know that in order to know completely about kernel you should know about shell scripting . 

In order to have a clear view on the kernel working and etc you should know about shell basic scripting atleast.......