Programming in C will teach you how to write programs in the C programming language. Whether you're a novice or experienced programmer, this book will provide you with a clear understanding of this language, which is the foundation for many object-oriented programming languages such as C++, Objective-C, C#, and Java.

This book teaches C by example, with complete C programs used to illustrate each new concept along the way. Stephen Kochan provides step-by-step explanations for all C functions. You will learn both the language fundamentals and good programming practices. Exercises at the end of each chapter make the book ideally suited for classroom use or for self-instruction.

All the features of the C language are covered in this book, including the latest additions added with the C11 standard. Appendixes provide a detailed summary of the language and the standard C library, both organized for quick reference.

Absolutely the best book for anyone starting out programming in C. This is an excellent introductory text with frequent examples and good text....This is the book I used to learn C-it's a great book.

-Vinit S. Carpenter, Learn C/C++ Today

Systems Performance, Second Edition, covers concepts, strategy, tools, and tuning for operating systems and applications, using Linux-based operating systems as the primary example. A deep understanding of these tools and techniques is critical for developers today. Implementing the strategies described in this thoroughly revised and updated edition can lead to a better end-user experience and lower costs, especially for cloud computing environments that charge by the OS instance.

Systems performance expert and best-selling author Brendan Gregg summarizes relevant operating system, hardware, and application theory to quickly get professionals up to speed even if they have never analyzed performance before. Gregg then provides in-depth explanations of the latest tools and techniques, including extended BPF, and shows how to get the most out of cloud, web, and large-scale enterprise systems. Key topics covered include

• Hardware, kernel, and application internals, and how they perform
• Methodologies for rapid performance analysis of complex systems
• Optimizing CPU, memory, file system, disk, and networking usage
• Sophisticated profiling and tracing with perf, Ftrace, and BPF (BCC and bpftrace)
• Performance challenges associated with cloud computing hypervisors
• Benchmarking more effectively

Featuring up-to-date coverage of Linux operating systems and environments, Systems Performance, Second Edition, also addresses issues that apply to any computer system. The book will be a go-to reference for many years to come and, like the first edition, required reading at leading tech companies.

Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

Practical, in-depth knowledge of the system programming interfaces that drive the UNIX and Linux kernels

Building on W. Rich Stevens' pioneering work, this third edition of the classic was updated by Steve Rago, a colleague of Stevens, to reflect technical advances and best practices aligning with Version 4 of the Single UNIX Specification.

This edition covers more than seventy interfaces including:

• POSIX asynchronous I/O
• Spin locks
• Barriers
• POSIX semaphores

Steve carefully retains the spirit and approach that have made this book so valuable, starting with files, directories, and processes, carefully laying the groundwork for more advanced techniques, such as signal handling and terminal I/O. And he thoroughly covers threads and multithreaded programming, and socket-based IPC.

Filled with examples, case-studies, and access to thousands of lines of downloadable code, Advanced Programming in the UNIX(R) Environment has helped generations of programmers write code with exceptional power, performance, and reliability.

As a thorough reference, pfSense Essentials covers installation and basic configuration through advanced networking and firewalling with the popular FreeBSD-based pfSense open source firewall and router distribution. The book includes setting up captive portals and MAC filtering, DHCP services, IPv6 autoconfiguration, multi-WAN routing, caching DNS, Dynamic DNS, high availability and redundant firewalls, port forwarding and network address translation, virtual LANs, traffic shaping and QoS, IPsec, L2TP, OpenVPN, wireless access points, time-scheduled packet filtering, and much more. It describes the web-based interface for backups, system upgrades, log management, installing add-on packages, graphical reports and analyzing network and system activity, and advanced firewall tunings, as well as the text console interface. Authored by BSD Unix and QA expert, Jeremy C. Reed, pfSense Essentials is a detailed guide for common security and networking tasks using pfSense 2.4.4 with older and newer features.

Write software that draws directly on services offered by the Linux kernel and core system libraries. With this comprehensive book, Linux kernel contributor Robert Love provides you with a tutorial on Linux system programming, a reference manual on Linux system calls, and an insider's guide to writing smarter, faster code.

Love clearly distinguishes between POSIX standard functions and special services offered only by Linux. With a new chapter on multithreading, this updated and expanded edition provides an in-depth look at Linux from both a theoretical and applied perspective over a wide range of programming topics, including:

• A Linux kernel, C library, and C compiler overview
• Basic I/O operations, such as reading from and writing to files
• 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
• Thread concepts, multithreaded programming, and Pthreads
• File and directory management
• Interfaces for allocating memory and optimizing memory access
• Basic and advanced signal interfaces, and their role on the system
• Clock management, including POSIX clocks and high-resolution timers

O'Reilly's bestselling book on Linux's bash shell is at it again. Now that Linux is an established player both as a server and on the desktop Learning the bash Shell has been updated and refreshed to account for all the latest changes. Indeed, this third edition serves as the most valuable guide yet to the bash shell. As any good programmer knows, the first thing users of the Linux operating system come face to face with is the shell the UNIX term for a user interface to the system. In other words, it's what lets you communicate with the computer via the keyboard and display. Mastering the bash shell might sound fairly simple but it isn't. In truth, there are many complexities that need careful explanation, which is just what Learning the bash Shell provides. If you are new to shell programming, the book provides an excellent introduction, covering everything from the most basic to the most advanced features. And if you've been writing shell scripts for years, it offers a great way to find out what the new shell offers. Learning the bash Shell is also full of practical examples of shell commands and programs that will make everyday use of Linux that much easier. With this book, programmers will learn:

• How to install bash as your login shell
• The basics of interactive shell use, including UNIX file and directory structures, standard I/O, and background jobs
• Command line editing, history substitution, and key bindings
• How to customize your shell environment without programming
• The nuts and bolts of basic shell programming, flow control structures, command-line options and typed variables
• Process handling, from job control to processes, coroutines and subshells
• Debugging techniques, such as trace and verbose modes
• Techniques for implementing system-wide shell customization and features related to system security

Among the text editors being used in the programming community, perhaps the most important family is vi and its derivatives. With this updated edition, Unix and Linux users will learn text editing basics for both vi and Vim (vi improved) before moving on to advanced editing tools for each editor. Authors Arnold Robbins and Elbert Hannah cover the latest major releases of Vim, including 8.0 and 8.2.

If you're a programmer or computer analyst, or you work with browsers or command-line interfaces, using Vim can speed up your work and make complex tasks easier. You'll examine multiwindow editing, global search and replacement, and power tools for programmers, and learn how to write interactive macros and scripts to extend the editor--all in the easy-to-follow style that's made this book a classic.

• Go beyond the basics to learn which vi commands fit your specific needs
• Learn advanced vi tools that shift most of the editing burden to the computer
• Explore Vim tools that provide major improvements over vi
• Examine Vimâ s multiwindow editing feature, a significant upgrade over vi
• Use Vim scripts to customize and tailor Vim to your needs
• Look at Vim in modern GUI environments with Graphical Vim (gvim)
• See Vim in the broader programming milieu, including using it as an IDE

Many users assume that their advanced filesystem is better than UFS because they have so many features-snapshots, checksums, compression, sophisticated caching algorithms, and so on-while all UFS has ever done is muck about putting data on disk. But, conversely, UFS users believe their filesystem is better for exactly the same reasons.

-Hitchhikers Guide to OpenBSD

Disk management is the core of system administration. Nobody can tell you how large that database is going to grow or how many files that archive must eventually support, but for everything else there's OpenBSD Mastery: Filesystems. This guide takes you through the latest in OpenBSD storage management, including:

• - OpenBSD's cross-platform storage stack
• - MBR, GPT, and disklabel partitions
• - The Unix File System
• - Growing, removing, and repairing filesystems
• - Memory file systems
• - The Buffer Cache
• - Why you need swap, and how to live with it
• - Coping with FAT, NTFS, EXT, and more
• - The Network File System
• - iSCSI
• - Software RAID
• - Encrypted filesystems
• - Encrypted installs

And more! Partition yourself for success and grab OpenBSD Mastery: Filesystems now.

CONFINE YOUR SOFTWARE

Jails are FreeBSD's most legendary feature: known to be powerful, tricky to master, and cloaked in decades of dubious lore. Deploying jails calls upon every sysadmin skill you have, and more--but unleashing lightweight virtualization is so worth it.

FreeBSD Mastery: Jails cuts through the clutter to expose the inner mechanisms of jails and unleash their power in your service. You will:

• Understand how jails achieve lightweight virtualization
• Understand the base system's jail tools and the iocage toolkit
• Optimally configure jail hardware
• Manage jails from the host and from within the jail
• Optimize disk space usage to support hundreds or thousands of jails
• Comfortably work within the limits of jails
• Implement fine-grained control of jail features
• Build virtual networks
• Deploy hierarchical jails
• Constrain jail resource usage
• And more

Strip away the mystery. Read FreeBSD Mastery: Jails today

This is the sequel to Git Commit Murder, right ?

/phk, creator of the jail system

In addition to covering a history of free and open source, The Daemon, the Gnu, and the Penguin explores how free and open software is changing the world. It is authored by Peter H. Salus, a noted UNIX, open source, and Internet historian and author of A Quarter Century of UNIX and Casting The Net and other books. Salus has interviewed well over a hundred key figures to document the history and background of free and open source software. In his book, Salus reaches back into the early days of computing, showing that even in pre-UNIX days there was freely available software, and rapidly moves forward to the Free Software movement of today and what it means for the future, drawing analogies and linkages from various aspects of economics and life.

Many users assume that their advanced filesystem is better than UFS because they have so many features-snapshots, checksums, compression, sophisticated caching algorithms, and so on-while all UFS has ever done is muck about putting data on disk. But, conversely, UFS users believe their filesystem is better for exactly the same reasons.

-Hitchhikers Guide to OpenBSD

Disk management is the core of system administration. Nobody can tell you how large that database is going to grow or how many files that archive must eventually support, but for everything else there's OpenBSD Mastery: Filesystems. This guide takes you through the latest in OpenBSD storage management, including:

• - OpenBSD's cross-platform storage stack
• - MBR, GPT, and disklabel partitions
• - The Unix File System
• - Growing, removing, and repairing filesystems
• - Memory file systems
• - The Buffer Cache
• - Why you need swap, and how to live with it
• - Coping with FAT, NTFS, EXT, and more
• - The Network File System
• - iSCSI
• - Software RAID
• - Encrypted filesystems
• - Encrypted installs

And more! Partition yourself for success and grab OpenBSD Mastery: Filesystems now.

With the growing popularity of Linux and the advent of Darwin, Unix has metamorphosed into something new and exciting. No longer perceived as a difficult operating system, more and more users are discovering the advantages of Unix for the first time. But whether you are a newcomer or a Unix power user, you'll find yourself thumbing through the goldmine of information in the new edition of Unix Power Tools to add to your store of knowledge. Want to try something new? Check this book first, and you're sure to find a tip or trick that will prevent you from learning things the hard way.

The latest edition of this best-selling favorite is loaded with advice about almost every aspect of Unix, covering all the new technologies that users need to know. In addition to vital information on Linux, Darwin, and BSD, Unix Power Tools 3rd Edition now offers more coverage of bash, zsh, and other new shells, along with discussions about modern utilities and applications. Several sections focus on security and Internet access. And there is a new chapter on access to Unix from Windows, addressing the heterogeneous nature of systems today. You'll also find expanded coverage of software installation and packaging, as well as basic information on Perl and Python.

Unix Power Tools 3rd Edition is a browser's book...like a magazine that you don't read from start to finish, but leaf through repeatedly until you realize that you've read it all. Bursting with cross-references, interesting sidebars explore syntax or point out other directions for exploration, including relevant technical details that might not be immediately apparent. The book includes articles abstracted from other O'Reilly books, new information that highlights program tricks and gotchas, tips posted to the Net over the years, and other accumulated wisdom.

Affectionately referred to by readers as the Unix book, UNIX Power Tools provides access to information every Unix user is going to need to know. It will help you think creatively about UNIX, and will help you get to the point where you can analyze your own problems. Your own solutions won't be far behind.

The most famous suppressed book in computer history * Used as an Operating System textbook at MITAfter 20 years, this is still the best expostion of the workings of a 'real' operating system. --- Ken Thompson (Developer of the UNIX operating system)After years of suppression (as trade secrets) by various owners of the UNIX code, this tome has been re-released, and we owe a debt to all involved in making this happen. I consider this to be the single most important book of 1996. Unix Review, June 1997The Lions book, cherished by UNIX hackers and widely circulated as a photocopied bootleg document since the late 1970's, is again available in an unrestricted edition. This legendary underground classic, reproduced without modification, is really two works in one: the complete source code to an early version (Edition 6) of the UNIX operating system, a treasure in itself a brilliant commentary on that code by John Lionswith additional historical perspective essays added in 1996.Lions' marriage of source code with commentary was originally used as an operating systems textbook, a purpose for which it remains superbly well-suited (as evidenced by it's ongoing use at MIT).

If you are new to Unix, this concise book will tell you just what you need to get started and no more. Unix was one of the first operating systems written in C, a high-level programming language, and its natural portability and low price made it a popular choice among universities. Initially, two main dialects of Unix existed: one produced by AT&T known as System V, and one developed at UC Berkeley and known as BSD. In recent years, many other dialects have been created, including the highly popular Linux operating system and the new Mac OS X (a derivative of BSD). Learning the Unix Operating System is a handy book for someone just starting with Unix or Linux, and it's an ideal primer for Mac and PC users of the Internet who need to know a little about Unix on the systems they visit. The fifth edition is the most effective introduction to Unix in print, covering Internet usage for email, file transfers, web browsing, and many major and minor updates to help the reader navigate the ever-expanding capabilities of the operating system:

• In response to the popularity of Linux, the book now focuses on the popular bash shell preferred by most Linux users.
• Since the release of the fourth edition, the Internet and its many functions has become part of most computer user's lives. A new chapter explains how to use ftp, pine for mail, and offers useful knowledge on how to surf the web.
• Today everyone is concerned about security. With this in mind, the author has included tips throughout the text on security basics, especially in the Internet and networking sections.

The book includes a completely updated quick reference card to make it easier for the reader to access the key functions of the command line.

If you need to parse or process text data in Linux or Unix, this useful book explains how to use flex and bison to solve your problems quickly. flex & bison is the long-awaited sequel to the classic O'Reilly book, lex & yacc. In the nearly two decades since the original book was published, the flex and bison utilities have proven to be more reliable and more powerful than the original Unix tools.

flex & bison covers the same core functionality vital to Linux and Unix program development, along with several important new topics. You'll find revised tutorials for novices and references for advanced users, as well as an explanation of each utility's basic usage and simple, standalone applications you can create with them. With flex & bison, you'll discover the wide range of uses these flexible tools offer.

• Address syntax crunching that regular expressions tools can't handle
• Build compilers and interpreters, and handle a wide range of text processing functions
• Interpret code, configuration files, or any other structured format
• Learn key programming techniques, including abstract syntax trees and symbol tables
• Implement a full SQL grammar-with complete sample code
• Use new features such as pure (reentrant) lexers and parsers, powerful GLR parsers, and interfaces to C++

Learn to harness the programming power that comes standard with all unix and linux systems (including Apple's OSX). This guide encourages hands-on experimentation by including actual scripts that feature the korn shell (ksh), awk, and sed.

GNU make is the most widely used build automation tool, but it can be challenging to master and its terse language can be tough to parse for even experienced programmers. Those who run into difficulties face a long, involved struggle, often leaving unsolved problems behind and GNU make's vast potential untapped.

The GNU Make Book demystifies GNU make and shows you how to use its best features. You'll find a fast, thorough rundown of the basics of variables, rules, targets, and makefiles. Learn how to fix wastefully long build times and other common problems, and gain insight into more advanced capabilities, such as complex pattern rules. With this utterly pragmatic manual and cookbook, you'll make rapid progress toward becoming a more effective user.

You'll also learn how to:

• Master user-defined functions, variables, and path handling
• Weigh the pitfalls and advantages of GNU make parallelization
• Handle automatic dependency generation, rebuilding, and non-recursive make
• Modify the GNU make source and take advantage of the GNU Make Standard Library
• Create makefile assertions and debug makefiles

GNU make is known for being tricky to use, but it doesn't have to be. If you're looking for a deeper understanding of this indispensable tool, you'll find The GNU Make Book to be an indispensable guide.

If you're a Unix system administrator, then the information you need every day just to get your job done could fill a book--a very large book. But, practically speaking, you don't want to stop and thumb through a weighty volume each time a problem arises. Your answer is the Essential System Administration Pocket Reference, the only system administration reference that fits in your pocket. Concise and easy-to-use, this little book is the portable companion to the classic Essential System Administration by AEleen Frisch. The Essential System Administration Pocket Reference is a quick reference to all the fundamental and essential tasks required to run such divergent Unix systems as Solaris, Linux, AIX, BSD, SuSe, Red Hat, and more. Beginners and experienced administrators alike will quickly be able to apply its principles and advice to solve everyday problems. The book is divided into three parts: Commands, Syntax and Their Applications, Configuration Files and Formats, and Operating System Specific Information. The information in this book is a must-have for any administrator or user of a Unix system. O'Reilly's Pocket References have become a favorite among technology professionals everywhere. By providing a wealth of important details in a concise, well-organized format, these handy books deliver just what you need to complete the task at hand. When you've reached a sticking point and need to get to a solution quickly, the new Essential System Administration Pocket Reference is the book you'll want to have.

Rich Text Format, or RTF, is the internal markup language used by Microsoft Word and understood by dozens of other word processors. RTF is a universal file format that pervades practically every desktop. Because RTF is text, it's much easier to generate and process than binary .doc files. Any programmer working with word processing documents needs to learn enough RTF to get around, whether it's to format text for Word (or almost any other word processor), to make global changes to an existing document, or to convert Word files to (or from) another format. RTF Pocket Guide is a concise and easy-to-use tutorial and quick-reference for anyone who occasionally ends up mired in RTF files. As the first published book to cover the RTF format in any detail, this small pocket guide explains the syntax of RTF with examples throughout, including special sections on Unicode RTF and MSHelp RTF, and several full programs that demonstrate how to work in RTF effectively. Most word processors produce RTF documents consisting of arcane and redundant markup. This book is the first step to finding order in the disorder of RTF.

Are you a beginner? Do you want to start to learn about Linux?
Do you want to start in only 1 hour?
This book is for you

The 1HourToStart books permits you to improve your knowledge in only 1 hour

We'll cover only the relevant aspects related to LINUX BASICS.The steps are very simple to follow: 1) Read the book.
2) Open your Linux PC.
3) Try the commands.and...nothing else

In this book you'll learn:

Linux Basics
Logs and monitoring
Managing Users and Groups
Performing a General System Health Check
Managing Processes and Services
How to Create Scheduled Tasks
Managing the Network