A Bourne Shell Programming/Scripting Tutorial for learning about using the Unix shell. Learn Linux / Unix shell scripting by example along with the theory. We'll have you mastering Unix shell scripting in no time! This thorough yet practical tutorial with examples throughout has been written with extensive feedback from literally hundreds of students and professionals in the field, both with and without a Unix or Linux background. From the author of the Wiley book "Shell Scripting - Expert Recipes for Bash, Linux and more" and of "How to Build a LAMP Server," this is his best-read and most popular work to date.
Create and maintain powerful Bash scripts for automation and administration. Key Features Get up and running with Linux shell scripting using real-world examples Leverage command-line techniques and methodologies to automate common yet complex administration tasks A practical guide with exposure to scripting constructs and common scripting patterns Book Description Shell scripts allow us to program commands in chains and have the system execute them as a scripted event, just like batch files. This book will start with an overview of Linux and Bash shell scripting, and then quickly deep dive into helping you set up your local environment, before introducing you to tools that are used to write shell scripts. The next set of chapters will focus on helping you understand Linux under the hood and what Bash provides the user. Soon, you will have embarked on your journey along the command line. You will now begin writing actual scripts instead of commands, and will be introduced to practical applications for scripts. The final set of chapters will deep dive into the more advanced topics in shell scripting. These advanced topics will take you from simple scripts to reusable, valuable programs that exist in the real world. The final chapter will leave you with some handy tips and tricks and, as regards the most frequently used commands, a cheat sheet containing the most interesting flags and options will also be provided. After completing this book, you should feel confident about starting your own shell scripting projects, no matter how simple or complex the task previously seemed. We aim to teach you how to script and what to consider, to complement the clear-cut patterns that you can use in your daily scripting challenges. What you will learn Understand Linux and Bash basics as well as shell scripting fundamentals Learn to write simple shell scripts that interact with Linux operating system Build, maintain, and deploy scripts in a Linux environment Learn best practices for writing shell scripts Avoid common pitfalls associated with Bash scripting Gain experience and the right toolset to write your own complex shell scripts Who this book is for This book targets new and existing Linux system administrators, Windows system administrators or developers who are interested in automating administrative tasks. No prior shell scripting experience is needed but in case you do this book will make a pro quickly. Readers should have a basic understanding of the command line.
Filled with over 150 essential, practical recipes that empower Unix users to regain lost timespent creating and testing shell scripts. The majority of scripts included are POSIX-compliantand supported by many of the major shell variants, including Bash, ksh, and sh.Each real-world example recipe follows the same problem-solution structure, meaningcross-referencing is easy and fast. Recipe topics include file conversion (DOS, UNIX, andMac), system administration, resource monitoring, filename management, complex datecalculations, screen control capabilities, and much more. Completely updated for this second edition and taking all the changes of the past tenyears into account, every recipe in this book is now relevant for a modern audience. AuthorsChris Johnson’s and Jayant Varma’s code is clear, direct, and applicable. Add this excellentreference to your library today.
This is a book for people who teach programming. We have been using Moodle/VPL in Computer Sciences and Engineering courses at UFSC for some years now and this book reflects our experiences. It is not only a step-by-step manual for the novice teacher wanting to start to use VPL in her lectures, but also a detailed report, describing experiences that anyone can reproduce, showing all the possibilities that VPL can offer in conjunction with Moodle. In this book we will go step-by-step through the whole process of building and configuring programming assignments using VPL: - beginning at the simplest programming exercise, where VPL acts simply as an homogeneous, Moodle-integrated programming and running environment and allows the teacher to plan and perform both lab activities that require student attendance and assignments for distance courses, without worrying if the required IDE, compiler or operating system version is properly installed at the lab or the student's home, - up to complex programming projects where VPL controls a set of source code files, some provided by the teacher and some developed by the student, acts as coding style and plagiarism judge and automatically evaluates and grades the projects, running tests based upon a set of test cases developed by the teacher. "I believe this book will mark a breakthrough in the material available for professors who would like to start using VPL. The book may also be valuable for those who are currently using the tool, showing them many utilities that probably they have never imagined. From my point of view...
Shell scripting skills never go out of style. It's the shell that unlocks the real potential of Unix. Shell scripting is essential for Unix users and system administrators-a way to quickly harness and customize the full power of any Unix system. With shell scripts, you can combine the fundamental Unix text and file processing commands to crunch data and automate repetitive tasks. But beneath this simple promise lies a treacherous ocean of variations in Unix commands and standards. Classic Shell Scripting is written to help you reliably navigate these tricky waters.Writing shell scripts requires more than just a knowledge of the shell language, it also requires familiarity with the individual Unix programs: why each one is there, how to use them by themselves, and in combination with the other programs. The authors are intimately familiar with the tips and tricks that can be used to create excellent scripts, as well as the traps that can make your best effort a bad shell script. With Classic Shell Scripting you'll avoid hours of wasted effort. You'll learn not only write useful shell scripts, but how to do it properly and portably.The ability to program and customize the shell quickly, reliably, and portably to get the best out of any individual system is an important skill for anyone operating and maintaining Unix or Linux systems. Classic Shell Scripting gives you everything you need to master these essential skills.
With the explosion of new audio and video content on the Web, it's more important than ever to use accurate and comprehensive metadata to get the most out of that content. Developing Quality Metadata is an advanced user guide that will help you improve your metadata by making it accurate and coherent with your own solutions. This book is designed to get you thinking about solving problems in a proactive and productive way by including practical descriptions of powerful programming tools and user techniques using several programming languages. For example, you can use shell scripting as part of the graphic arts and media production process, or you can use a popular spreadsheet application to drive your workflow. The concepts explored in this book are framed within the context of a multimedia professional working on the Web or in broadcasting, but they are relevant to anyone responsible for a growing library of content, be it audio-visual, text, or financial.
A compendium of shell scripting recipes that can immediately be used, adjusted, and applied The shell is the primary way of communicating with the Unix and Linux systems, providing a direct way to program by automating simple-to-intermediate tasks. With this book, Linux expert Steve Parker shares a collection of shell scripting recipes that can be used as is or easily modified for a variety of environments or situations. The book covers shell programming, with a focus on Linux and the Bash shell; it provides credible, real-world relevance, as well as providing the flexible tools to get started immediately. Shares a collection of helpful shell scripting recipes that can immediately be used for various of real-world challenges Features recipes for system tools, shell features, and systems administration Provides a host of plug and play recipes for to immediately apply and easily modify so the wheel doesn't have to be reinvented with each challenge faced Come out of your shell and dive into this collection of tried and tested shell scripting recipes that you can start using right away!
Unleash the power of shell scripts to solve real-world problems by breaking through the practice of writing tedious code About This Book Learn how to efficiently and effectively build shell scripts and develop advanced applications with this handy book Develop high quality and efficient solutions by writing professional and real-world scripts, and debug scripts by checking and shell tracing A step-by-step tutorial to automate routine tasks by developing scripts from a basic level to very advanced functionality Who This Book Is For This book is ideal for those who are proficient at working with Linux and who want to learn about shell scripting to improve their efficiency and practical skills. By the end of this book, you will be able to confidently use your own shell scripts in the real world. What You Will Learn Familiarize yourself with the various text filtering tools available in Linux Combine the fundamental text and file processing commands to process data and automate repetitive tasks Understand expressions and variables and how to use them practically Automate decision-making and save a lot of time and effort of revisiting code Get to grips with advanced functionality such as using traps and signals and using dialogs to develop screens Start up a system and customize a Linux system Take an in-depth look at regular expressions and pattern matching to understand the capabilities of scripting In Detail Linux is the one of the most powerful and universally adopted OSes. Shell is a program that gives the user direct interaction with the operating system. Scripts are collections of commands that are stored in a file. The shell can read this file and act on the commands as if they were typed on the keyboard. Shell scripting is used to automate day-to-day administration, and for testing or product development tasks. This book covers Bash, GNU Bourne Again SHell, preparing you to work in the exciting world of Linux shell scripting. We start with an introduction to the Shell environment and explain basic commands used in Shell. Next we move on to check, kill, and control the execution of processes in Linux OS. Further, we teach you about the filter tools available in Linux and explain standard output and standard errors devices. Then we will ensure you understand Shell's interpretation of commands and get a firmer grasp so you use them in practice. Next, you'll experience some real-world essentials such as debugging and perform Shell arithmetic fluently. Then you'll take a step ahead and learn new and advanced topics in Shell scripting, such as starting up a system and customizing a Linux system. Finally, you'll get to understand the capabilities of scripting and learn about Grep, Stream Editor, and Awk. Style and approach This practical book will go from the very basics of shell scripting to complex, customized automation. The idea behind this book is to be as practical as possible and give you the look and feel of what real-world scripting is like.
grep kurz & gut ist die erste deutschsprachige Befehlsreferenz zu grep, dem mächtigen Such- und Filterungswerkzeug unter Unix. Jeder, der sich ausführlich zu den Möglichkeiten, die in grep stecken, informieren möchte, ist mit diesem Buch bestens bedient. Er erfährt, wie viele alltägliche Aufgaben mit grep ausgeführt werden können, von der Mail-Filterung über geschicktes Log-Management bis hin zur Malware-Analyse. Der Befehl grep stellt viele verschiedene Möglichkeiten bereit, Textstrings in einer Datei oder einem Ausgabestream zu finden. Diese Flexibilität macht grep zu einem mächtigen Tool, um das Vorhandensein von Informationen in Dateien zu ermitteln. Im Allgemeinen ist der Befehl grep nur dafür gedacht, Textausgaben oder Textdateien zu durchsuchen. Sie können auch Binärdateien (oder andere Nicht-Textdateien) durchsuchen, aber das Tool ist in dem Fall eingeschränkt. Tricks zum Durchsuchen von Binärdateien mit grep (also die Verwendung von String-Befehlen) werden ebenso in grep kurz & gut aufgezeigt. Sollte der Leser bereits mit der Arbeit mit grep vertraut sein, hilft ihm grep kurz & gut dabei, seine Kenntnisse aufzufrischen und mit grep besonders effizient zu arbeiten. Für grep-Einsteiger ist das vorliegende Buch eine hervorragende Möglichkeit, grep von Grund auf zu lernen und klug anzuwenden.
Programmieren mit Perl ist die Übersetzung der 2. Auflage von Programming Perl, der anerkannten Perl-Bibel. Perl selbst ist die erste von Larry Wall geschaffene Legende, dieses Buch (überall liebevoll nur das "Kamel-Buch" genannt) ist die zweite. Gemeinsam mit anderen Perl-Experten lüftet Wall die vielen neuen Geheimnisse der Version 5 von Perl, liefert dabei gleichzeitig aber auch neue Einsichten in die alten und erprobten Features. Perl ist zur ungekrönten Königin der Programmiersprachen herangewachsen und wird zunehmend als die nützlichste Sprache angesehen, wenn es darum geht, eine Vielzahl von Aufgaben über viele Plattformen hinweg und so portabel wie möglich zu erledigen. Nicht mehr zufrieden damit, nur die Unix-Umgebung zu dominieren, zog Perl aus, nun auch noch die Web- Programmierung zu beherrschen. Programmieren mit Perl enthält unter anderem: Eine ausführliche Einführung in die Sprache und ihre Syntax; eine vollständige Referenz aller Perl-Funktionen, Perl-Operationen und Standard-Bibliotheksmodule; eine Erläuterung der Perl-Referenzen und komplexen Datenstrukturen; eine detaillierte Darstellung der objektorientierten Eigenschaften von Perl; weiterführende Themen wie Effizienz, Debugging, Aufrufoptionen, Sicherheit von Programmen, Interprozesskommunikation, Autoloading und vieles mehr.
Ubuntu Unleashed 2015 Edition is filled with unique and advanced information for everyone who wants to make the most of the Linux-based Ubuntu operating system. This new edition has been thoroughly revised and updated by a long-time Ubuntu community leader to reflect the exciting new Ubuntu 14.10 while including tons of information that will continue to apply to future editions. Former Ubuntu Forum administrator Matthew Helmke covers all you need to know about Ubuntu 14.10 installation, configuration, productivity, multimedia, development, system administration, server operations, networking, virtualization, security, DevOps, and more–including intermediate-to-advanced techniques you won’t find in any other book. Helmke presents up-to-the-minute introductions to Ubuntu’s key productivity and Web development tools, programming languages, hardware support, and more. You’ll find new or improved coverage of Ubuntu’s Unity interface, various types of servers, software repositories, database options, virtualization and cloud services, development tools, monitoring, troubleshooting, Ubuntu’s push into mobile and other touch screen devices, and much more. Detailed information on how to… Configure and customize the Unity desktop Get started with multimedia and productivity applications, including LibreOffice Manage Linux services, users, and software packages Administer and run Ubuntu from the command line Automate tasks and use shell scripting Provide secure remote access and configure a secure VPN Manage kernels and modules Administer file, print, email, proxy, LDAP, DNS, and HTTP servers (Apache, Nginx, or alternatives) Learn about new options for managing large numbers of servers Work with databases (both SQL and the newest NoSQL alternatives) Get started with virtualization Build a private cloud with Juju and Charms Learn the basics about popular programming languages including Python, PHP, Perl, and new alternatives such as Go and Rust Learn about Ubuntu’s work toward usability on touch-screen and phone devices Ubuntu 14.10 on DVD DVD includes the full Ubuntu 14.10 distribution for 64 bit computers (most desktop and notebooks systems today) as well as the complete LibreOffice office suite and hundreds of additional programs and utilities. Free Kick Start Chapter! Purchase this book and receive a free Ubuntu 15.04 Kick Start chapter after Ubuntu 15.04 is released. See inside back cover for details
A tutorial designed for anyone needing to create simple Kornshell scripts--system administrators, programmers at various levels and UNIX users. Rosenberg has given us a book that is 85% examples-oriented. This unique format allows readers to learn Kornshell Script programming in the shortest amount of time.
Covering all major platforms-Linux, Unix, Mac OS X, and Windows-this guide shows programmers and power users how to customize an operating system, automate commands, and simplify administration tasks using shell scripts Offers complete shell-scripting instructions, robust code examples, and full scripts for OS customization Covers shells as a user interface, basic scripting techniques, script editing and debugging, graphing data, and simplifying administrative tasks In addition to Unix and Linux scripting, the book covers the latest Windows scripting techniques and offers a complete tutorial on Mac OS X scripting, including detailed coverage of mobile file systems, legacy applications, Mac text editors, video captures, and the Mac OS X Open Scripting Architecture
Talk directly to your system for a faster workflow withautomation capability Linux Command Line and Shell Scripting Bible is youressential Linux guide. With detailed instruction and abundantexamples, this book teaches you how to bypass the graphicalinterface and communicate directly with your computer, saving timeand expanding capability. This third edition incorporates thirtypages of new functional examples that are fully updated to alignwith the latest Linux features. Beginning with command linefundamentals, the book moves into shell scripting and shows you thepractical application of commands in automating frequentlyperformed functions. This guide includes useful tutorials, and adesk reference value of numerous examples. The Linux command line allows you to type specific shellcommands directly into the system to manipulate files and querysystem resources. Command line statements can be combined intoshort programs called shell scripts, a practice increasing inpopularity due to its usefulness in automation. This book is acomplete guide providing detailed instruction and expert adviceworking within this aspect of Linux. Write simple script utilities to automate tasks Understand the shell, and create shell scripts Produce database, e-mail, and web scripts Study scripting examples ranging from basic to advanced Whether used as a tutorial or as a quick reference, this bookcontains information that every Linux user should know. Why notlearn to use the system to its utmost capability? Linux is a robustsystem with tremendous potential, and Linux Command Line andShell Scripting Bible opens the door to new possibilities.
Dieses Buch ist für alle Leute geschrieben, die mit UNIX arbeiten und nur Dinge lernen wollen, die man wirklich benötigt, ohne ein absoluter UNIX-Experte zu werden. Der Leser erfährt, was man mit UNIX alles machen kann, wie man einsteigt und welche Befehle man kennen sollte. Außerdem bietet es viele Lösungen für auftretende Probleme und macht eine klare Aussage darüber, bei welchen Problemen man besser professionelle Hilfe in Anspruch nehmen sollte. Der Leser erfährt: * Was das alles ist und wie es funktioniert: Verzeichnisse, Dateien, Befehle * Wie man am besten mit Dateien umgeht und Ordnung in den Dateienwust bringt * Wie abhanden gekommene Dateien wiedergefunden werden können * Wie die beliebteste UNIX-GUI (Graphical User Interface): Motif benutzt wird * Welche nützlichen Programme und Texteditoren es für UNIX gibt und wie man damit umgeht * Wie man Nachrichten in die weite Welt versendet und Dateien mit anderen teilt * Was man im Falle einer Katastrophe macht und was man dagegen unternehmen kann