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Learn all the command lines for all Linux shells in this one-stop guide

There's a lot to be said for going back to basics. Not only does this Bible give you a quick refresher on the structure of open-source Linux software, it also shows you how to bypass the hefty graphical user interface on Linux systems and start interacting the fast and efficient way—with command lines and automated scripts. You'll learn how to manage files on the filesystem, start and stop programs, use databases, even do Web programming—without a GUI—with this one-stop resource.

• Understand the Linux desktop and various command-line parameters
• Learn filesystem navigation, file handling, and the basics of bash shell commands
• Write shell scripts to automate routine functions and reports
• Harness nesting loops and structured commands
• Monitor programs, master file permissions, and make queries
• Run scripts in background mode and schedule jobs
• Use sed, gawk, and regular expressions
• Explore all alternate shells, including ash, tcsh, ksh, korn, and zsh

This book is about writing software that makes the most effective use of the system you're running on -- code that interfaces directly with the kernel and core system libraries, including the shell, text editor, compiler, debugger, core utilities, and system daemons. The majority of both Unix and Linux code is still written at the system level, and Linux System Programming focuses on everything above the kernel, where applications such as Apache, bash, cp, vim, Emacs, gcc, gdb, glibc, ls, mv, and X exist. Written primarily for engineers looking to program (better) at the low level, this book is an ideal teaching tool for any programmer. Even with the trend toward high-level development, either through web software (such as PHP) or managed code (C#), someone still has to write the PHP interpreter and the C# virtual machine. Linux System Programming gives you an understanding of core internals that makes for better code, no matter where it appears in the stack. Debugging high-level code often requires you to understand the system calls and kernel behavior of your operating system, too. Key topics include: An overview of Linux, the kernel, the C library, and the C compiler Reading from and writing to files, along with other basic file I/O operations, including how the Linux kernel implements and manages file I/O Buffer size management, including the Standard I/O library Advanced I/O interfaces, memory mappings, and optimization techniques The family of system calls for basic process management Advanced process management, including real-time processes File and directories-creating, moving, copying, deleting, and managing them Memory management -- interfaces for allocating memory, managingthe memory you have, and optimizing your memory access Signals and their role on a Unix system, plus basic and advanced signal interfaces Time, sleeping, and clock management, starting with the basics and continuing through POSIX clocks and high resolution timers With Linux System Programming, you will be able to take an in-depth look at Linux from both a theoretical and an applied perspective as you cover a wide range of programming topics.

The GNU Compiler Collection (GCC) offers a variety of compilers for different programming languages including C, C++, Java, Fortran, and Ada. The Definitive Guide to GCC, Second Edition has been revised to reflect the changes made in the most recent major GCC release, version 4. Providing in-depth information on GCC's enormous array of features and options, and introducing crucial tools such as autoconf, gprof, and libtool, this book functions as both a guide and reference.

This book goes well beyond a general introduction to GCC and covers key programming techniques such as profiling and optimization that, when used in conjunction with GCCs advanced features, can greatly improve application performance. This second edition will prove to be an invaluable resource, whether youre a student seeking familiarity with this crucial tool or an expert who uses GCC on a daily basis.

In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of systems, you need to delve deep into the heart of the kernel. The kernel handles all interactions between the CPU and the external world, and determines which programs will share processor time, in what order. It manages limited memory so well that hundreds of processes can share the system efficiently, and expertly organizes data transfers so that the CPU isn't kept waiting any longer than necessary for the relatively slow disks.

The third edition of "Understanding the Linux Kernel" takes you on a guided tour of the most significant data structures, algorithms, and programming tricks used in the kernel. Probing beyond superficial features, the authors offer valuable insights to people who want to know how things really work inside their machine. Important Intel-specific features are discussed. Relevant segments of code are dissected line by line. But the book covers more than just the functioning of the code; it explains the theoretical underpinnings of why Linux does things the way it does.

This book is intended first and foremost for the experienced embedded system designer
who wishes to use Linux in a current or future project. Such a reader is expected to be
familiar with all the techniques and technologies used in developing embedded systems,
such as cross-compiling, BDM or JTAG debugging, and the implications of dealing
with immature or incomplete hardware. If you are such a reader, you may want to skip
some of the background material about embedded system development presented early
in some sections. There are, however, many early sections (particularly in Chapter 2)
that you will need to read, because they cover the special implications of using the
Linux kernel in an embedded system.
This book is also intended for the beginning embedded system developer who would
like to become familiar with the tools and techniques used in developing embedded
systems based on Linux. This book is not an introduction to embedded systems, however,
and you may need to research some of the issues discussed here in an introductory
textbook.
If you are a power user or a system administrator already familiar with Linux, this book
should help you produce highly customized Linux installations. If you find that distributions
install too many packages for your liking, for example, and would like to build
your own custom distribution from scratch, many parts of this book should come in
handy, particularly Chapter 6.
Finally, this book should be helpful to a programmer or a Linux enthusiast who wants
to understand how Linux systems are built and operated. Though the material in this
book does not cover how general-purpose distributions are created, many of the techniques
covered here apply, to a certain extent, as much to general purpose distributions
as they do to creating customized embedded Linux installations.

If you have some programming experience and are ready to venture into Linux programming, this updated edition of the bestselling entry-level book takes you there. New to this edition are chapters on MySQL^® access and administration; programming GNOME^TM and KDE^TM; and Linux standards for portable applications. Coverage of kernel programming, device drivers, CVS, grep, and GUI development environments has expanded.

The authors guide you step by step, using construction of a CD database application to give you hands-on experience as you progress from the basic to the complex.

You’ll start with fundamental concepts like writing Linux programs in C. You’ll learn basic system calls, file I/O, interprocess communication, and shell programming. You’ll become skilled with the toolkits and libraries for working with user interfaces. The book starts with the basics, explaining how to compile and run your first program. First, each concept is explained to give you a solid understanding of the material. Practical examples are then presented, so you see how to apply the knowledge in real applications.

The Ubuntu distribution simplifies Linux by providing a sensible collection of applications, an easy-to-use package manager, and lots of fine-tuning, which make it possibly the best Linux for desktops and laptops. Readers of both Linux Journal and TUX Magazine confirmed this by voting Ubuntu as the best Linux distribution in each publication's 2005 Readers Choice Awards. None of that simplification, however, makes Ubuntu any less fun if you're a hacker or a power user.

Like all books in the "Hacks" series,Ubuntu Hacks includes 100 quick tips and tricks for all users of all technical levels. Beginners will appreciate the installation advice and tips on getting the most out of the free applications packaged with Ubuntu, while intermediate and advanced readers will learn the ins-and-outs of power management, wireless roaming, 3D video acceleration, server configuration, and much more.

Wouldn’t you like to automate the tedious daily tasks of system administration? Automating UNIX and Linux Administration will show you how, by exploring existing tools and offering real-world examples. Parts of the book are Linux-specific, but most of it applies to a UNIX system, including multiple variants of UNIX. Author Kirk Bauer briefly overviews tools and technologies—and assumes preliminary knowledge about editing a configuration file or mounting a file system.

The techniques, methods, and tools in this book will help you manage a single system—but will prove especially powerful across multiple systems. No matter if the systems are desktops, servers, or Beowulf clusters—all of them will benefit from this automation. And managing five to five thousand systems will become a simpler task!

Welcome to Ubuntu 7.10 Linux Unleashed! This book covers the free Linux distribution named Ubuntu and includes a fully functional and complete operating system produced by the Ubuntu Community, sponsored by Canonical Software.

Ubuntu directly descends from one of the oldest and most revered Linux distributions ever: Debian. Those of you who know nothing about Linux will likely not have heard of Debian; it is enough to know that it is considered to be one of the most stable and secure Linux distributions currently available. Ubuntu benefits directly from many contributions from free software developers across the world.

If you are new to Linux, you have made a great decision by choosing this book. Sams Publishing’s Unleashed books offer an in-depth look at their subject, taking in both beginner and advanced users and moving them to a new level of knowledge and expertise. Ubuntu is a fast-changing distribution that can be updated at least twice a year. We have tracked the development of Ubuntu from early on to make sure that the information in this book mirrors closely the development of the distribution. A full copy of Ubuntu is included on the enclosed disc, making it possible for you to install Linux in less than an hour! No longer an upstart, Linux now has an enviable position in today’s modern computing world. It can be found on machines as diverse as mobile phones and wristwatches, all the way up to supercomputers—in fact, Linux currently runs on more than half of the world’s top 500 supercomputers.

Do not let the reputation of Linux discourage you, however. Most people who have heard of Linux think that it is found only on servers, looking after websites and email. Nothing could be further from the truth because Linux is making huge inroads in to the desktop market, too. Corporations are realizing the benefits of running a stable and powerful operating system that is easy to maintain and easy to secure. Add to that the hundreds of improvements in usability, and Linux becomes an attractive proposition that tempts many CIOs. The best part is that as large Linux vendors improve Linux, the majority of those improvements make it into freely available distributions, allowing you to benefit from the additions and refinements made. You can put Ubuntu to work today and be assured of a great user experience.

This book provides all the information that you need to get up and running with Ubuntu. It even tells you how to keep Ubuntu running in top shape and how to adapt Ubuntu to changes in your own needs. You can use Ubuntu at home, in the workplace, or, with permission, at your school or college. In fact, you might want to poke around your school’s computer rooms: You will probably find that someone has already beaten you to the punch—Linux is commonly found in academic institutions. Feel free to make as many copies of the software as you want; because Ubuntu is freely distributable all over the world, no copyright lawyers are going to pound on your door.

Beginning Linux Programming, Fourth Edition continues its unique approach to teaching UNIX programming in a simple and structured way on the Linux platform. Through the use of detailed and realistic examples, students learn by doing, and are able to move from being a Linux beginner to creating custom applications in Linux. The book introduces fundamental concepts beginning with the basics of writing Unix programs in C, and including material on basic system calls, file I/O, interprocess communication (for getting programs to work together), and shell programming. Parallel to this, the book introduces the toolkits and libraries for working with user interfaces, from simpler terminal mode applications to X and GTK+ for graphical user interfaces. Advanced topics are covered in detail such as processes, pipes, semaphores, socket programming, using MySQL, writing applications for the GNOME or the KDE desktop, writing device drivers, POSIX Threads, and kernel programming for the latest Linux Kernel.