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Linux Ch 1

The Role and Function of Linux Application Platform Hardware Moderator Data Storage Security Connectivity
The Linux Kernel This is the heart of Linux; hence it is called the kernel. The kernel is the actual operating system itself. It’s the component that fulfills the key operating system duties discussed above.
Libraries Libraries are pre-written code “pieces” that application programmers use in their programs.
Utilities Linux includes a wide variety of utilities that you can use to complete operating system management tasks, such as maintaining the file system, editing text files, managing running processes, and installing new software packages.
User Interface Of course, you as the end user need some means of interacting with the operating system. Linux includes both a command-line interface (CLI) and a graphical user interface (GUI). We’ll explore both of these interfaces later in this chapter.
You’ve downloaded the source code for the Linux kernel. You made several modifications to make the kernel handle Web site hosting tasks better. You’ve recompiled the kernel and it runs great. Can you legally give a copy of your new kernel to a coworker? Yes, you can. Under the GPL, anyone can modify the Linux kernel and create their own custom Linux distribution. As long as you abide by the particulars of the GPL, making your source code freely available, you can redistribute your version of Linux.
Common Linux Roles ■ Linux on the desktop ■ Linux as a server ■ Linux as a firewall
Created by: Shoaib