Master shell basics and Unix tools and discover easy commands to perform complex tasks with speed
Key Features
Learn why the Bash shell is widely used on Linux and iOS
Explore advanced shell concepts, such as pipes and redirection
Understand how to use Unix command-line tools as building blocks for different tasks
Book Description
The most basic interface to a computer—the command line—remains the most flexible and powerful way of processing data and performing and automating various day-to-day tasks.
Command Line Fundamentals begins by exploring the basics, and then focuses on the most common tool, the Bash shell (which is standard on all Linux and iOS systems). As you make your way through the book, you'll explore the traditional Unix command-line programs as implemented by the GNU project.
You'll also learn to use redirection and pipelines to assemble these programs to solve complex problems.
By the end of this book, you'll have explored the basics of shell scripting, allowing you to easily and quickly automate tasks.
What you will learn
Use the Bash shell to run commands
Utilize basic Unix utilities such as cat, tr, sort, and uniq
Explore shell wildcards to manage groups of files
Apply useful keyboard shortcuts in shell
Employ redirection and pipes to process data
Write both basic and advanced shell scripts to automate tasks
Who this book is for
Command Line Fundamentals is for programmers who use GUIs but want to understand how to use the command line to complete tasks faster.
A hands-on guide to making system programming with C++ easy
Key Features
Write system-level code leveraging C++17
Learn the internals of the Linux Application Binary Interface (ABI) and apply it to system programming
Explore C++ concurrency to take advantage of server-level constructs
Book Description
C++ is a general-purpose programming language with a bias toward system programming as it provides ready access to hardware-level resources, efficient compilation, and a versatile approach to higher-level abstractions.
This book will help you understand the benefits of system programming with C++17. You will gain a firm understanding of various C, C++, and POSIX standards, as well as their respective system types for both C++ and POSIX. After a brief refresher on C++, Resource Acquisition Is Initialization (RAII),
and the new C++ Guideline Support Library (GSL), you will learn to program Linux and Unix systems along with process management. As you progress through the chapters, you will become acquainted with C++'s support for IO. You will then study various memory management methods, including a chapter on
allocators and how they benefit system programming. You will also explore how to program file input and output and learn about POSIX sockets. This book will help you get to grips with safely setting up a UDP and TCP server/client.
Finally, you will be guided through Unix time interfaces, multithreading, and error handling with C++ exceptions. By the end of this book, you will be comfortable with using C++ to program high-quality systems.
What you will learn
Understand the benefits of using C++ for system programming
Program Linux/Unix systems using C++
Discover the advantages of Resource Acquisition Is Initialization (RAII)
Program both console and file input and output
Uncover the POSIX socket APIs and understand how to program them
Explore advanced system programming topics, such as C++ allocators
Use POSIX and C++ threads to program concurrent systems
Grasp how C++ can be used to create performant system applications
Who this book is for
If you are a fresh developer with intermediate knowledge of C++ but little or no knowledge of Unix and Linux system programming, this book will help you learn system programming with C++ in a practical way.