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According to Linux.org, there are over 200 different Linux distributions available. Many of these are actively maintained and have a loyal following, and some less so. Some Linux distributions are quite new and some have been around for a very long time. One Linux distribution that has appeared relatively recently is Ubuntu. Despite being a relative newcomer to the Linux landscape, Ubuntu has very quickly gained prominence in what is clearly a very crowded field. Ubuntu routinely tops the Linux distribution page ranking on DistroWatch.com, and has been selected by Dell and other vendors as the Linux to be pre-installed in select systems. Perhaps the most significant achievement for Ubuntu, however, is that it is popular not just to Linux novices, but also with Linux experts, a group of people known for being highly discerning and critical.
The purpose of this book is to provide an overview of the essential knowledge required to use and maintain an Ubuntu system. From the basics of installation, configuring the desktop and implementing wireless networking through to tasks such as configuring firewalls, setting up a web server, adding disk drives and swap space, configuring KVM based virtualization and providing remote desktop access via an SSH tunnel, Ubuntu Essentials takes a step by step approach to installing, using and administering Ubuntu.
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Setting up a complete development environment using open source tools has always been a challenging task. Although all of the development tools are available in the open source, no comprehensive development environment exists as of today. This book is an effort to enable the reader to set up and use open source to create such an environment. Each chapter of the book is dedicated to a particular component of the development environment.
Chapter 1 provides an introduction to the practical software development life cycle and stages. The chapter also provides information about the documentation required for all serious software development projects. Guidelines are provided about criteria for selecting hardware and software platforms.
Chapter 2 is about using editors. Editors are essential components of any software development system. Selection of a good editor saves time and money in the development life cycle. This chapter provides information about commonly used editors like Emacs, Jed and vim (vi Improved).
Chapter 3 is about the GNU set of compilers commonly known as GCC. The procedure
for installation and use of gcc with different languages is presented here.
Larger software projects contain hundreds or thousands of files. Compiling these files in an orderly fashion and then building the final executable product is a challenging task. GNU make is a tool used to build a project by compiling and linking source code files. Chapter 4 provides information on how to install and use this important tool.
Chapter 5 discusses debuggers. An introduction to commonly used debuggers is provided in this chapter with an emphasis on the GNU debugger gdb.
Chapter 6 introduces CVS, which is the open source revision control system and is most widely used in open source development. Setting up a CVS server is detailed in this chapter. You will learn how to use remote the CVS server in a secure way.
There are tools other than compilers, debuggers and editors. These tools are discussed in Chapter 7. These tools help in building good products.
Open source tools are also widely used in embedded and cross-platform development. Chapter 8 provides information using open source tools in such environments. Remote debugging is an important concept and it is explained in this chapter.
Chapter 9 is the last chapter of the book and it provides a basic introduction to open source Java development.
There is one important thing that you must keep in mind while reading this book. It is not a tutorial on any language or programming techniques. It is about development tools and how to use these. You need other books to learn programming languages and techniques.
The book explains the installation procedures of different tools. By the time you read this book, new versions of these tools may be available. The installation procedures will not vary drastically in these versions and you can use the steps explained in this book. In fact, most of the open source tools employ the same compiling and installation procedure that you will note in this book. This process has been consistent and is expected to remain the same in future as well.
After reading this book, we are very much hopeful that the reader will be able to understand different components of a development system. You will also be able to create such a system from scratch using open source tools.
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So, you want to write a kernel module. You know C, you've written a few normal programs to run as processes, and now you want to get to where the real action is, to where a single wild pointer can wipe out your file system and a core dump means a reboot.
What exactly is a kernel module? Modules are pieces of code that can be loaded and unloaded into the kernel upon demand. They extend the functionality of the kernel without the need to reboot the system. For example, one type of module is the device driver, which allows the kernel to access hardware connected to the system. Without modules, we would have to build monolithic kernels and add new functionality directly into the kernel image. Besides having larger kernels, this has the disadvantage of requiring us to rebuild and reboot the kernel every time we want new functionality.
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Book description from O'Reilly:
Book description
Linux Kernel in a Nutshell covers the entire range of kernel tasks, starting with downloading the source and making sure that the kernel is in sync with the versions of the tools you need. In addition to configuration and installation steps, the book offers reference material and discussions of related topics such as control of kernel options at runtime.
Written by a leading developer and maintainer of the Linux kernel, Linux Kernel in a Nutshell is a comprehensive overview of kernel configuration and building, a critical task for Linux users and administrators.
No distribution can provide a Linux kernel that meets all users' needs. Computers big and small have special requirements that require reconfiguring and rebuilding the kernel. Whether you are trying to get sound, wireless support, and power management working on a laptop or incorporating enterprise features such as logical volume management on a large server, you can benefit from the insights in this book.
Linux Kernel in a Nutshell covers the entire range of kernel tasks, starting with downloading the source and making sure that the kernel is in sync with the versions of the tools you need. In addition to configuration and installation steps, the book offers reference material and discussions of related topics such as control of kernel options at runtime.
A key benefit of the book is a chapter on determining exactly what drivers are needed for your hardware. Also included are recipes that list what you need to do to accomplish a wide range of popular tasks.
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Advanced Linux Programming is intended for the programmer already familiar with the C programming language. Authors Alex Samuel, Jeffrey Oldham, and Mark Mitchell of CodeSourcery, LLC take a tutorial approach and teach the most important concepts and power features of the GNU/Linux system in application programs.
If you're a developer already experienced with programming for the GNU/Linux system, are experienced with another UNIX-like system and are interested in developing GNU/Linux software, or want to make the transition for a non-UNIX environment and are already familiar with the general principles of writing good software, this book is for you. In addition, you will find that this book is equally applicable to C and C++ programming. Even those progamming in other languages will find this book useful since the C language APIs and conventions are the lingua franca of GNU/Linux.
This book is intended for three types of readers:
You might be a developer already experienced with programming for the GNU/Linux system, and you want to learn about some of its advanced features and capabilities.You might be interested in writing more sophisticated programs with features such as multiprocessing, multithreading, interprocess communication, and interaction with hardware devices.You might want to improve your programs by making them run faster, more reliably, and more securely, or by designing them to interact better with the rest of the GNU/Linux system.
You might be a developer experienced with another UNIX-like system who’s interested in developing GNU/Linux software, too.You might already be familiar with standard APIs such as those in the POSIX specification. To develop GNU/Linux software, you need to know the peculiarities of the system, its limitations, additional capabilities, and conventions.
You might be a developer making the transition from a non-UNIX environment, such as Microsoft’s Win32 platform.You might already be familiar with the general principles of writing good software, but you need to know the specific techniques that GNU/Linux programs use to interact with the system and with each other. And you want to make sure your programs fit naturally into the GNU/Linux system and behave as users expect them to.
This book is not intended to be a comprehensive guide or reference to all aspects of GNU/Linux programming. Instead, we’ll take a tutorial approach, introducing the most important concepts and techniques, and giving examples of how to use them. Section 1.5,“Finding More Information,” in Chapter 1, “Getting Started,” contains references to additional documentation, where you can obtain complete details about these and other aspects of GNU/Linux programming.
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Written by award-winning author Keir Thomas, Ubuntu Pocket Guide and Reference is a totally unique and concise guide for everyday Ubuntu use. It's the world's most popular Ubuntu book, with over half a million readers (and rising!).
Focuses on core competencies and background knowledge needed to be an expert Ubuntu user;
Readable, accessible, and easy to understand—even if you've never used Linux before;
100% new and original! Written from the ground-up to cover Ubuntu 8.04 and 8.10.
