With its simple commands, flags, and parameters, a well-formed command-line application is the quickest way to automate a backup, a build, or a deployment and simplify your life. With this book, you'll learn specific ways to write command-line applications that are easy to use, deploy, and maintain, using a set of clear best practices and the Ruby programming language. This book is designed to make any programmer or system administrator more productive in their job. Now updated for Ruby 2.Writing a command-line application that's self-documenting, robust, adaptable and forever useful is easier than you might think. Ruby is particularly suited to this task, because it combines high-level abstractions with "close to the metal" system interaction wrapped up in a concise, readable syntax. Plus, Ruby has the support of a rich ecosystem of open source tools and libraries.Ten insightful chapters each explain and demonstrate a command-line best practice. You'll see how to use these tools to elevate the lowliest automation script to a maintainable, polished application. You'll learn how to use free, open source parsers to create user-friendly command-line interfaces as well as command suites. You'll see how to use defaults to keep options simple for everyday users, while giving advanced users options for more complex tasks. There's no reason why a command-line application should lack documentation, whether it's part of a help command or a man page; you'll find out when and how to use both. Your journey from command-line novice to pro ends with a look at valuable approaches to testing your apps, and includes some fun techniques for outside-the-box, colorful interfaces that will delight your users.With Ruby, the command line is not dead. Long live the command line.

    With this guide, pioneering Go programmer Mark Summerfield shows how to write code that takes full advantage of Go's breakthrough features and idioms. Both a tutorial and a language reference, "Programming in Go" brings together all the knowledge you need to evaluate Go, think in Go, and write high-performance software with Go. Summerfield presents multiple idiom comparisons showing exactly how Go improves upon older languages, calling special attention to Go's key innovations. Along the way, he explains everything from the absolute basics through Go's lock-free channel-based concurrency and its flexible and unusual duck-typing type-safe approach to object-orientation. Throughout, Summerfield's approach is thoroughly practical. Each chapter offers multiple live code examples designed to encourage experimentation and help you quickly develop mastery. Wherever possible, complete programs and packages are presented to provide realistic use cases, as well as exercises. Coverage includes:-- Quickly getting and installing Go, and building and running Go programs -- Exploring Go's syntax, features, and extensive standard library -- Programming Boolean values, expressions, and numeric types -- Creating, comparing, indexing, slicing, and formatting strings -- Understanding Go's highly efficient built-in collection types: slices and maps -- Using Go as a procedural programming language -- Discovering Go's unusual and flexible approach to object orientation -- Mastering Go's unique, simple, and natural approach to fine-grained concurrency -- Reading and writing binary, text, JSON, and XML files -- Importing and using standard library packages, custom packages, and third-party packages -- Creating, documenting, unit testing, and benchmarking custom packages

    You'll also receive updates when significant changes are made, as well as the final ebook version. Embedded Android is for Developers wanting to create embedded systems based on Android and for those wanting to port Android to new hardware, or creating a custom development environment. Hackers and moders will also find this an indispensible guide to how Android works.

    The time you spend context switching between your editor and your consoles eats away at your productivity. Take control of your environment with tmux, a terminal multiplexer that you can tailor to your workflow. With this updated second edition for tmux 2.3, you'll customize, script, and leverage tmux's unique abilities to craft a productive terminal environment that lets you keep your fingers on your keyboard's home row.You have a database console, web server, test runner, and text editor running at the same time, but switching between them and trying to find what you need takes up valuable time and breaks your concentration. By using tmux 2.3, you can improve your productivity and regain your focus. This book will show you how.This second edition includes many features requested by readers, including how to integrate plugins into your workflow, how to integrate tmux with Vim for seamless navigation - oh, and how to use tmux on Windows 10.Use tmux to manage multiple terminal sessions in a single window using only your keyboard. Manage and run programs side by side in panes, and create the perfect development environment with custom scripts so that when you're ready to work, your programs are waiting for you. Manipulate text with tmux's copy and paste buffers, so you can move text around freely between applications. Discover how easy it is to use tmux to collaborate remotely with others, and explore more advanced usage as you manage multiple tmux sessions, add custom scripts into the tmux status line, and integrate tmux with your system.Whether you're an application developer or a system administrator, you'll find many useful tricks and techniques to help you take control of your terminal.

    100% complete coverage of all objectives for exam RH302 Exam Readiness Checklist at the front of the book--you're ready for the exam when all objectives on the list are checked off Inside the Exam sections in every chapter highlight key exam topics covered Real-world exercises modeled after hands-on exam scenarios Two complete lab-based exams simulate the format, tone, topics, and difficulty of the real exam Bonus content (available for download) includes installation screen review, basic instructions for using VMware and Xen as testbeds, and paper and pencil versions of the lab exams Covers all RH302 exam topics, including: Hardware installation and configuration The boot process Linux filesystem administration Package management and Kickstart User and group administration System administration tools Kernel services and configuration Apache and Squid Network file sharing services (NFS, FTP, and Samba) Domain Name System (DNS) E-mail (servers and clients) Extended Internet Services Daemon (xinetd), the Secure package, and DHCP The X Window System Firewalls, SELinux, and troubleshooting

    It is offered for sale in print format as a convenience.Get a head start evaluating Windows 8.1 - with early technical insights from award-winning journalist and Windows expert Ed Bott. Based on the Windows 8.1 Preview release, this guide introduces new features and capabilities, with scenario-based advice on how Windows 8.1 can meet the needs of your business. Get the high-level overview you need to begin preparing your deployment now.Preview new features and enhancements, including:How features compare to Windows 7 and Windows XP The Windows 8.1 user experience Deployment Security features Internet Explorer 11 Delivering Windows apps Recovery options Networking and remote access Managing mobile devices Virtualization Windows RT 8.1

    The text relates the fundamentals to three real-world examples: Intel's 8085, Motorola's 6800, and the 6502 chip used by Apple Computers. This edition includes a student version of the TASM cross-assembler software program, experiments for Digital Computer Electronics and more.

    It is a great book, not just for beginning programmers, but also for computer users who would want to have an idea what is happening behind the scenes as they work with various computer programs. In this book, you are going to learn what the C programming language entails, how to write conditions, expressions, statements and even commands, for the language to perform its functions efficiently. You will learn too how to organize relevant expressions so that after compilation and execution, the computer returns useful results and not error messages. Additionally, this book details the data types that you need for the C language and how to present it as well. Simply put, this is a book for programmers, learners taking other computer courses, and other computer users who would like to be versed with the workings of the most popular computer language, C. In this book You'll learn: What Is The C Language? Setting Up Your Local Environment The C Structure and Data Type C Constants and Literals C Storage Classes Making Decisions In C The Role Of Loops In C Programming Functions in C Programming Structures and Union in C Bit Fields and Typedef Within C. C Header Files and Type Casting Benefits Of Using The C Language ...and much more!! Download your copy today! click the BUY button and download it right now!

    It will keep you entertained for hours. It's the very unusual story of Paul Henry - from his eventful childhood to his adventurous career in journalism to his recent outrageous comments on television which divided the country.A natural-born story teller, Paul spins many great yarns in this book. It's fascinating insight into his complex character. He's surprising -- he doesn't adhere to any prescribed set of beliefs. He's bold -- he set himself up as an international news correspondent working out of his Masterton lounge. And he's versatile -- turning his hand to running a cafe, running for Parliament and running from terrorists.

    No matter if you use your RV just a few weekends and holidays a year or make it your full time home, you will find tips that will make your RV travels easier, safer and more enjoyable. You'll find tips that will save you time and money. You will find tips on getting your mail while traveling, internet access, boondocking, and work camping. You'll learn how to save money on camping fees just by choosing where to stay and staying longer. You will get tips on how you can customize your RV to make your home.Chapter TitlesRV Care & Maintenance TipsRV Boondocking – Dry-Camping – Overnighting TipsRV Camping TipsRV Park Reservation & Check-In ChecklistsRV Travel & Destination TipsRV Driving TipsRV Lifestyle TipsWork Camping TipsRV Accessories TipsRV Battery TipsRV Holding Tanks & Toilet TipsRV Fresh Water System TipsRV Electrical System TipsRV Refrigerator TipsMiscellaneous RV TipsTips for RVing With Dogs This book includes over 400 tips. You pay pennies for tips that can save you hundreds of dollars.About the Editors: As most folks do, we started out tent camping. In the late 1970s we ventured across the country from northern California to western Pennsylvania and back through Washington and Oregon in Steven’s boxy old 1965 Chevy van.   Those were the days, my friends. That trip had a lasting effect and over time we realized we were destined to be full time RVers. In 1995 we sold our house and a Recreational Vehicle became our home. An RV has been our home every since.

    

    Plenty of room to fill in website addresses, usernames, passwords, and add notes. Spiral binding allows pages to lie flat. Elastic band closure. Includes pages in the back to record additional useful information, such as your home network configuration, software license numbers, and other notes. Removable band and discreet cover design. Measures 4-1/4" wide x 5-3/4" high.

     Rails(TM) AntiPatterns identifies these widespread Rails code and design problems, explains why they're bad and why they happen--and shows exactly what to do instead.The book is organized into concise, modular chapters--each outlines a single common AntiPattern and offers detailed, cookbook-style code solutions that were previously difficult or impossible to find. Leading Rails developers Chad Pytel and Tammer Saleh also offer specific guidance for refactoring existing bad code or design to reflect sound object-oriented principles and established Rails best practices. With their help, developers, architects, and testers can dramatically improve new and existing applications, avoid future problems, and establish superior Rails coding standards throughout their organizations.This book will help you understand, avoid, and solve problems withModel layer code, from general object-oriented programming violations to complex SQL and excessive redundancy Domain modeling, including schema and database issues such as normalization and serialization View layer tools and conventions Controller-layer code, including RESTful code Service-related APIs, including timeouts, exceptions, backgrounding, and response codes Third-party code, including plug-ins and gems Testing, from test suites to test-driven development processes Scaling and deployment Database issues, including migrations and validations System design for "graceful degradation" in the real world

    This guidebook includes the island's history, culture and all of its significant archaeological sites. It also contains all of the practical information needed for your visit, including island activities and up-to-date restaurant and shopping recommendations. It will also tell you the best times to visit the sites in order to get the optimal light for photography and to avoid the crowds, as well as many other 'local' tips that no other guidebook will tell you. Contains over 100 color photos of Easter Island, as well as color maps of both the island and the one town, Hanga Roa. New, Updated edition (2014).

    Hundreds of improvements and updates for the new tenth anniversary edition from CostaRicaGuide.com and Toucan Maps.2 sided, 39 in. x 26.25 in. (4.875 in. x 9 in. folded)Roads are clearly differentiated by color and line width for classes from limited access divided highways down to 4WD seasonal tracks - improved and even easier to see the main route to your destination at a glance.Locations and easy to read indexes are included for cities and towns, National Parks and other natural areas, beaches, rivers, peaks, volcanoes, waterfalls and the best hotels, lodges, resorts, restaurants and activities.Exclusiveso The only street level map in print for the entire Central Valley from the International Airport to San Jose.o Detailed maps of Arenal Volcano/Fortuna, Alajuela, Escazu, Heredia, Manuel Antonio/Quepos, Monteverde/Santa Elena, Playa Jaco, Playa Tamarindo/Langosta, Puerto Jimenez & Tenorio/Celeste.o Proprietary symbols for distinctively Costa Rican attractions like zip-line and hanging bridge canopy tours, butterfly gardens, waterfall rappelling, rain forest horseback rides, SCUBA, deep sea fishing, golf, white water rafting, trails and many more. See at a glance what to do where.o Driving distance table and mini map for calculating trip distances and estimating drive times.o Printed on high tech synthetic "paper" it s lightweight, durable & totally waterproof - works great as an emergency umbrella!o A few dozen useful English to Spanish phrase and word translations are provided in an inset. You will appreciate having 'What is the best way to get there?' and 'Can you please show me on the map?' at your fingertips if you need to ask directions.