UNIX expert Randal K. Michael guides you through every detail of writing shell scripts to automate specific tasks. Each chapter begins with a typical, everyday UNIX challenge, then shows you how to take basic syntax and turn it into a shell scripting solution. Covering Bash, Bourne, and Korn shell scripting, this updated edition provides complete shell scripts plus detailed descriptions of each part. UNIX programmers and system administrators can tailor these to build tools that monitor for specific system events and situations, building solid UNIX shell scripting skills to solve real-world system administration problems.
Market_Desc: · Computer science professionals, serious shell scripters and UNIX gurus who need to understand how the different shell environments work and how to automate specific tasks that are repetitive or reoccurring· Students Special Features: · Scripting books as a whole have very respectable Bookscan weekly sell through, averaging 50 copies per week for the top 5· 2e includes 50% modified material and 15% new material. Linux is greatly expanded in this new edition as the BASH shell is covered with complete end-to-end shell scripting examples· Covers top four flavors of UNIX: AIX, HP-UX, Linux and Solaris· Designed to teach people how to solve real-world problems, not just a shell scripting book· Revision includes a solution in KORN shell and BASH shell for most of the shell scripts and two new chapters to meet the needs of applications programmers for working w/record files in preparation for government audits: Working with Record Files and Those Pesky Sarbanes-Oxley (SOX) Audits· A test bank and end of chapter questions provide value-add for college courses About The Book: The book is broken down into three sections to better cover material by user group. Part one begins with the basics of shell scripting. Part two is targeted at System Analysts, Program Testers and Programmer Analysts. Two new chapters have been added Working with Record Files and Those Pesky Sarbanes-Oxley (SOX) Audits . Application programmers have specific needs for working with record files and need scripts to meet the needs of auditors. Part three is specifically targeted at Systems Administrators and the UNIX guru.
Reguläre Ausdrücke sind ein leistungsstarkes Mittel zur Verarbeitung von Texten und Daten. Wenn Sie reguläre Ausdrücke noch nicht kennen, wird Ihnen dieses Buch eine ganz neue Welt eröffnen. Aufgrund der ausgesprochen detaillierten und tiefgründigen Behandlung des Themas ist dieses Buch aber auch für Experten eine wahre Trouvaille. Die neue Auflage dieses anerkannten Standardwerks behandelt jetzt auch die Unterstützung regulärer Ausdrücke in PHP sowie Suns java.util.regex. Der klare und unterhaltsame Stil des Buchs hat schon Tausenden von Programmierern das an sich trockene Thema nähergebracht, und mit den vielen Beispielen zu Problemen aus dem Programmieralltag ist Reguläre Ausdrücke eine praktische Hilfe bei der täglichen Arbeit. Reguläre Ausdrücke sind überall Sie sind standardmäßig in Perl, PHP, Java, Python, Ruby, MySQL, VB.NET und C# (und allen Sprachen des .NET-Frameworks) sowie anderen Programmiersprachen und Werkzeugen eingebaut. Dieses Buch geht detailliert auf die Unterschiede und Gemeinsamkeiten bei der Behandlung regulärer Ausdrücke in diesen Sprachen und Werkzeugen ein. Besonders ausführlich werden die Regex-Features von Perl, Java, PHP und .NET behandelt. Reguläre Ausdrücke sind mächtig Reguläre Ausdrücke sind sehr leistungsfähig und flexibel. Dennoch bleibt ihre Anwendung oft unter ihren Möglichkeiten. Mit regulären Ausdrücken können Sie komplexe und subtile Textbearbeitungsprobleme lösen, von denen Sie vielleicht nie vermutet hätten, daß sie sich automatisieren lassen. Reguläre Ausdrücke ersparen Ihnen Arbeit und Ärger, und viele Probleme lassen sich mit ihnen auf elegante Weise lösen. Reguläre Ausdrücke sind anspruchsvoll Was in der Hand von Experten eine sehr nützliche Fähigkeit ist, kann sich als Stolperstein für Ungeübte herausstellen. Dieses Buch zeigt einen Weg durch das unwägbare Gebiet und hilft Ihnen, selbst Experte zu werden. Wenn Sie die regulären Ausdrücke beherrschen, werden sie zu einem unverzichtbaren Teil Ihres Werkzeugkastens. Sie werden sich fragen, wie Sie je ohne sie arbeiten konnten.
Master the complexities of Bash shell scripting and unlock the power of shell for your enterprise About This Book Identify the high level steps such as verifying user input, using command lines and conditional statements in creating and executing simple shell scripts Create and edit dynamic shell scripts to manage complex and repetitive tasks Learn about scripting in Perl and programming in Python as a BASH scripting alternative with this practical, step-by-step guide Who This Book Is For Mastering Linux Shell Scripting has been written for Linux administrators who want to automate tasks in their daily lives, saving time and effort. You'll need to have command-line experience and be familiar with the tasks that you need to automate. What You Will Learn Use the type command to identify the order of command evaluation Create interactive scripts that prompt for user input Foster menu structures for operators with little command-line experience Develop scripts that dynamically edit web configuration files to produce a new virtual host Write scripts that use AWK to search and reports on log files Draft effective scripts using functions as building blocks, reducing maintenance and build time Make informed choices by comparing different script languages such as Perl and Python with BASH In Detail Shell scripting is a quick method to prototype a complex application or a problem by automating tasks when working on Linux-based systems. Using both simple one-line commands and command sequences complex problems can be solved with ease, from text processing to backing up sysadmin tools. In this book, you'll discover everything you need to know to master shell scripting and make informed choices about the elements you employ. Get to grips with the fundamentals of creating and running a script in normal mode, and in debug mode. Learn about various conditional statements' code snippets, and realize the power of repetition and loops in your shell script. Implement functions and edit files using the Stream Editor, script in Perl, program in Python – as well as complete coverage of other scripting languages to ensure you can choose the best tool for your project. Style and approach The book will capture your attention and keep you engaged with the simplicity and clarity of each explanation. Every step is accompanied with screen captures so you can cross-check the results before moving on.
Master the complexities of Bash shell scripting and unlock the power of shell for your enterprise Key Features Identify high-level steps such as verifying user input Using the command line and conditional statements in creating/executing simple shell scripts Create and edit dynamic shell scripts to manage complex and repetitive tasks Leverage the command-line to bypass GUI and automate common tasks Book Description In this book, you’ll discover everything you need to know to master shell scripting and make informed choices about the elements you employ. Grab your favorite editor and start writing your best Bash scripts step by step. Get to grips with the fundamentals of creating and running a script in normal mode, and in debug mode. Learn about various conditional statements' code snippets, and realize the power of repetition and loops in your shell script. You will also learn to write complex shell scripts. This book will also deep dive into file system administration, directories, and system administration like networking, process management, user authentications, and package installation and regular expressions. Towards the end of the book, you will learn how to use Python as a BASH Scripting alternative. By the end of this book, you will know shell scripts at the snap of your fingers and will be able to automate and communicate with your system with keyboard expressions. What you will learn Make, execute, and debug your first Bash script Create interactive scripts that prompt for user input Foster menu structures for operators with little command-line experience Develop scripts that dynamically edit web configuration files to produce a new virtual host Write scripts that use AWK to search and reports on log files Draft effective scripts using functions as building blocks, reducing maintenance and build time Make informed choices by comparing different script languages such as Python with BASH Who this book is for If you are a Linux administrator or a system administrator and are interested in automating tasks in your daily lives, saving time and effort, this book is for you. Basic shell scripting and command-line experience will be required. Familiarity with the tasks you need to automate will be helpful.
Authoritative coverage on the first Linux+ exam revision in more than five years The Linux+ exam is an entry-level Linux certification exam administered by CompTIA that covers your knowledge of basic Linux system administration skills. With this being the first update to the exam in more than five years, you'll need to be prepared on the most up-to-date information on all Linux administration topics. Boasting clear and concise material, practical examples, and insights drawn from real-world experience, this study guide is an indispensable resource. Completely updated for the newest Linux+ exam-the first exam revision in more than five years Thorough coverage on key exam topics, including installation and configuration, system maintenance and operations, application and services, networking, and security Packed with chapter review questions, real-world scenarios, hands-on exercises, and a glossary of the most important terms you need to know CD features two practice exams, electronic flashcards, interactive chapter review questions, and the book in a searchable PDF Written by a highly respected and recognized author in the field of Linux, this study guide prepares you for the completely new Linux+ exam.
Your one stop guide to making the most out of Bash programming About This Book From roots to leaves, learn how to program in Bash and automate daily tasks, pouring some spice in your scripts Daemonize a script and make a real service of it, ensuring it's available at any time to process user-fed data or commands This book provides functional examples that show you practical applications of commands Who This Book Is For If you're a power user or system administrator involved in writing Bash scripts to automate tasks, then this book is for you. This book is also ideal for advanced users who are engaged in complex daily tasks. What You Will Learn Understand Bash right from the basics and progress to an advanced level Customise your environment and automate system routine tasks Write structured scripts and create a command-line interface for your scripts Understand arrays, menus, and functions Securely execute remote commands using ssh Write Nagios plugins to automate your infrastructure checks Interact with web services, and a Slack notification script Find out how to execute subshells and take advantage of parallelism Explore inter-process communication and write your own daemon In Detail System administration is an everyday effort that involves a lot of tedious tasks, and devious pits. Knowing your environment is the key to unleashing the most powerful solution that will make your life easy as an administrator, and show you the path to new heights. Bash is your Swiss army knife to set up your working or home environment as you want, when you want. This book will enable you to customize your system step by step, making your own real, virtual, home out of it. The journey will take you swiftly through the basis of the shell programming in Bash to more interesting and challenging tasks. You will be introduced to one of the most famous open source monitoring systems—Nagios, and write complex programs with it in any languages. You'll see how to perform checks on your sites and applications. Moving on, you'll discover how to write your own daemons so you can create your services and take advantage of inter-process communication to let your scripts talk to each other. So, despite these being everyday tasks, you'll have a lot of fun on the way. By the end of the book, you will have gained advanced knowledge of Bash that will help you automate routine tasks and manage your systems. Style and approach This book presents step-by-step instructions and expert advice on working with Bash and writing scripts. Starting from the basics, this book serves as a reference manual where you can find handy solutions and advice to make your scripts flexible and powerful.
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.
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.
Linux ist längst nicht mehr ein Betriebssystem für Nerds, sondern hat sich mittlerweile einen Namen als ernstzunehmende Alternative zu Microsoft Windows gemacht. Lernen Sie in diesem Buch alles Wissenswerte für Ihr Rendezvous mit dem Pinguin: von der Installation auf Ihrem Rechner, über die Entscheidung für den GNOME- oder den KDE-Desktop bis hin zur Arbeit mit der Shell. Richard Blum zeigt Ihnen, wie Sie sich in Dateien und Ordnern zurechtfinden, wie Sie Programme installieren und deinstallieren und wie Sie mit Linux ins Internet kommen. Außerdem erklärt er die wichtigsten Anwendungen unter Linux wie das Office-Paket OpenOffice.org und das Bildverarbeitungsprogramm GIMP. Auf der beiliegenden DVD finden Sie Komplett-Distributionen von openSUSE 11.3, Live-Versionen von openSUSE 11.3 (KDE und GNOME) sowie Live-Versionen von Ubuntu 10.04.
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.
This book is for you if you can create directories, edit files, write a simple shell script, write a C program, or if you use UNIX and no longer get lost making your way through the system. The book's broad and concise coverage of the UNIX system includes: utilities, administration, software development, networking, and internal operation. The book will help you solve many problems in: writing shell scripts that solve data manipulation tasks; how to connect your UNIX workstation to a network; how to use UNIX utilities to find "lost" files; create user accounts; manage a network computer with NFS, NIS, and DNS; debug and monitor a network; efficiently develop software on UNIX systems; write a graphical program for the X Window System; and secure and monitor your UNIX system. Intended readers include programmers, system administrators, and hobbyists (particularly those trying to run Linux on their home computers).

Best Books