---
product_id: 8973571
title: "How Linux Works, 2nd Edition: What Every Superuser Should Know"
price: "265 zł"
currency: PLN
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reviews_count: 13
url: https://www.desertcart.pl/products/8973571-how-linux-works-2nd-edition-what-every-superuser-should-know
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---

# How Linux Works, 2nd Edition: What Every Superuser Should Know

**Price:** 265 zł
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- **What is this?** How Linux Works, 2nd Edition: What Every Superuser Should Know
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## Description

Unlike some operating systems, Linux doesn’t try to hide the important bits from you—it gives you full control of your computer. But to truly master Linux, you need to understand its internals, like how the system boots, how networking works, and what the kernel actually does. In this completely revised second edition of the perennial best seller How Linux Works , author Brian Ward makes the concepts behind Linux internals accessible to anyone curious about the inner workings of the operating system. Inside, you’ll find the kind of knowledge that normally comes from years of experience doing things the hard way. You’ll learn: –How Linux boots, from boot loaders to init implementations (systemd, Upstart, and System V) –How the kernel manages devices, device drivers, and processes –How networking, interfaces, firewalls, and servers work –How development tools work and relate to shared libraries –How to write effective shell scripts You’ll also explore the kernel and examine key system tasks inside user space, including system calls, input and output, and filesystems. With its combination of background, theory, real-world examples, and patient explanations, How Linux Works will teach you what you need to know to solve pesky problems and take control of your operating system.

Review: Excellent Like New Condition, Rate AA++ - Received Book and it was in like new condition. Also at a very good price. Has info on commands and such. Gives a better understanding of the Linux operating system. I found comparisons between different distributions easier to understand as many elements are similar. Great Book.
Review: An Absolute MUST for Pen Testers and Hackers - I've read reviews all over the web of Brian's new edition, and I'm frankly confused. The range of opinions go from "This is very basic, don't bother if you're advanced" to "Don't bother if you're a beginner, way too much detail on the inner workings than you need." 3 bears? Just right for... who? Part of the problem might be the subtitle: "What every superuser should know." In Brian's usual dry sense of humor, this refers to the $ vs. # prompt difference between user and "superuser" (kernel access) at the command prompt. It does NOT mean (goodness no) that you have to be some kind of superuser in the programming sense to understand or greatly enjoy this book. In one fell swoop Ward does a number of things with the specialized term in unix/linux (superuser is simply what Windows folk would call a sysop or administrator, or hackers would look at with rootkits/kernels as privilege escalation): 1. Letting casual users know they will be using the command line rather than graphic interface 2. Demonstrating the major update from the first edition: this book is a LOT more about the kernel than the first edition, thankfully so! This is a TOTAL update, so even though I frequently advise going back to a previous edition for unethical publishers and authors that do a cosmetic update and call it a new edition, this is NOT the case here-- Brian has totally reworked the book to bring it up to date with many features Linux was missing (especially in Ubuntu dists) when the first edition was written. This new edition is a MUST, as 10 years has been a lifetime in the Linux world-- frankly the first edition is a paperweight now. And, since this edition includes numerous detailed steps for playing along with your own IDE/SDK throughout as well as complete code on the site, it is now dist independent as much as possible. I've tried the code with Ubuntu, Debian, Fedora and RHEI so far, and found ZERO problems with only teensy adjustments. That is unusual for a newly released title, but not for No Starch, who have technical editors who actually TRY the code, unlike a lot of publishers out there in this field. If you're a beginner, there is no better introduction to operating systems than this book, period. Brian takes the time to explain in painstaking detail the INTUITIVE workings of nearly every o/s-- things you must know to go forward in any kind of programming. In my areas of robotics, embedded and security, many new candidates (some with Masters degrees in IT) flunk the interview because of lack of basic "what's really going on?" answers. These talented candidates know how to program, but when asked very basic questions like "What's the kernel doing here?" or "What does object oriented vs. functional or imperative mean at this level of system call?" their eyes glaze over. This is why, unlike some other reviewers, I strongly advise reading this book for BOTH beginners and advanced programmers. You do not have to have an objective of designing compilers either! Even basic security and hacking, when using tools like IDA Pro, require you to be able to look at the command line and "see" what state the kernel is in, what it is doing and calling, and what certain interrupt/resume sequences really mean regardless of sequential, parallel or virtual memory paradigms. It is not enough to "let the legacy software" (or in the case of sploits, the rootkit) do the work anymore-- even basic scripters are now modifying vm's and rootkits with Python, and the typical sploit, whether pen, hack, forensics or just system admin, involves sophisticated user/kernel interactions by malware that can now not only inject sequences, but also install entire new o/s donuts around your kernel and control the entire o/s! Finally, this book is radically fun if you have any interest in computers, at any level, including high school AND grad school, as well as seasoned practicing programmers. At over 350 pages and extremely up to date, Ward packs each page with SO much information and detailed knowledge, with deeply intuitive examples, that you can either study every sentence numerous times like a text, looking up details in his many external resources, or just read casually and get a "gist" that is rare as an overview of what's really going on between kernel and user abstraction levels (or in the operational sense, interfaces). The information in this book is pertinent for both Geek Squad repair folk and MIT PhD malware designers. I guarantee, as an old professor who teaches Kali Linux to hackers and pen testers at both of these levels, and in assembly reverse engineering detail including memory forensics, that there is something delightful for everyone in this new edition... highly recommended.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #613,414 in Books ( See Top 100 in Books ) #49 in Linux Programming #98 in Linux & UNIX Administration (Books) #144 in Linux Networking & System Administration |
| Customer Reviews | 4.7 out of 5 stars 794 Reviews |

## Images

![How Linux Works, 2nd Edition: What Every Superuser Should Know - Image 1](https://m.media-amazon.com/images/I/81yeuNCINTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Like New Condition, Rate AA++
*by E***. on April 30, 2026*

Received Book and it was in like new condition. Also at a very good price. Has info on commands and such. Gives a better understanding of the Linux operating system. I found comparisons between different distributions easier to understand as many elements are similar. Great Book.

### ⭐⭐⭐⭐⭐ An Absolute MUST for Pen Testers and Hackers
*by P***Z on December 12, 2014*

I've read reviews all over the web of Brian's new edition, and I'm frankly confused. The range of opinions go from "This is very basic, don't bother if you're advanced" to "Don't bother if you're a beginner, way too much detail on the inner workings than you need." 3 bears? Just right for... who? Part of the problem might be the subtitle: "What every superuser should know." In Brian's usual dry sense of humor, this refers to the $ vs. # prompt difference between user and "superuser" (kernel access) at the command prompt. It does NOT mean (goodness no) that you have to be some kind of superuser in the programming sense to understand or greatly enjoy this book. In one fell swoop Ward does a number of things with the specialized term in unix/linux (superuser is simply what Windows folk would call a sysop or administrator, or hackers would look at with rootkits/kernels as privilege escalation): 1. Letting casual users know they will be using the command line rather than graphic interface 2. Demonstrating the major update from the first edition: this book is a LOT more about the kernel than the first edition, thankfully so! This is a TOTAL update, so even though I frequently advise going back to a previous edition for unethical publishers and authors that do a cosmetic update and call it a new edition, this is NOT the case here-- Brian has totally reworked the book to bring it up to date with many features Linux was missing (especially in Ubuntu dists) when the first edition was written. This new edition is a MUST, as 10 years has been a lifetime in the Linux world-- frankly the first edition is a paperweight now. And, since this edition includes numerous detailed steps for playing along with your own IDE/SDK throughout as well as complete code on the site, it is now dist independent as much as possible. I've tried the code with Ubuntu, Debian, Fedora and RHEI so far, and found ZERO problems with only teensy adjustments. That is unusual for a newly released title, but not for No Starch, who have technical editors who actually TRY the code, unlike a lot of publishers out there in this field. If you're a beginner, there is no better introduction to operating systems than this book, period. Brian takes the time to explain in painstaking detail the INTUITIVE workings of nearly every o/s-- things you must know to go forward in any kind of programming. In my areas of robotics, embedded and security, many new candidates (some with Masters degrees in IT) flunk the interview because of lack of basic "what's really going on?" answers. These talented candidates know how to program, but when asked very basic questions like "What's the kernel doing here?" or "What does object oriented vs. functional or imperative mean at this level of system call?" their eyes glaze over. This is why, unlike some other reviewers, I strongly advise reading this book for BOTH beginners and advanced programmers. You do not have to have an objective of designing compilers either! Even basic security and hacking, when using tools like IDA Pro, require you to be able to look at the command line and "see" what state the kernel is in, what it is doing and calling, and what certain interrupt/resume sequences really mean regardless of sequential, parallel or virtual memory paradigms. It is not enough to "let the legacy software" (or in the case of sploits, the rootkit) do the work anymore-- even basic scripters are now modifying vm's and rootkits with Python, and the typical sploit, whether pen, hack, forensics or just system admin, involves sophisticated user/kernel interactions by malware that can now not only inject sequences, but also install entire new o/s donuts around your kernel and control the entire o/s! Finally, this book is radically fun if you have any interest in computers, at any level, including high school AND grad school, as well as seasoned practicing programmers. At over 350 pages and extremely up to date, Ward packs each page with SO much information and detailed knowledge, with deeply intuitive examples, that you can either study every sentence numerous times like a text, looking up details in his many external resources, or just read casually and get a "gist" that is rare as an overview of what's really going on between kernel and user abstraction levels (or in the operational sense, interfaces). The information in this book is pertinent for both Geek Squad repair folk and MIT PhD malware designers. I guarantee, as an old professor who teaches Kali Linux to hackers and pen testers at both of these levels, and in assembly reverse engineering detail including memory forensics, that there is something delightful for everyone in this new edition... highly recommended.

### ⭐⭐⭐⭐ Excellent book but needs more in some sections
*by M***R on October 27, 2020*

This is a great book to learn the basics of how linux works. I wish some things were expanded on a bit more like the grub.cfg file. A lot of people have multiple iso images of linux and would like to know how to not only get grub in to a /boot directory on a usb drive but also how to configure those iso images to be selected from when starting up the computer. There are other things that need a little more like udev and the explanation of kernel images and how they work with the modules and hooks seemed a little light but for a first book to cut your teeth on this is excellent. I would say between this and a decent search engine you should be able to figure out pretty much whatever you want to do with linux.

## Frequently Bought Together

- How Linux Works, 2nd Edition: What Every Superuser Should Know
- The Linux Command Line, 2nd Edition: A Complete Introduction
- Linux Command Bible 3e

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*Last updated: 2026-05-22*