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Learn Linux Shell Scripting – Fundamentals of Bash 4.4

Learn Linux Shell Scripting – Fundamentals of Bash 4.4

Author: Sebastiaan Tammer

Publisher: Packt Publishing Ltd

ISBN: 9781788990240

Category: Computers

Page: 452

View: 684

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Create and maintain powerful Bash scripts for automation and administration. Key FeaturesGet up and running with Linux shell scripting using real-world examplesLeverage command-line techniques and methodologies to automate common yet complex administration tasksA practical guide with exposure to scripting constructs and common scripting patternsBook 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 learnUnderstand Linux and Bash basics as well as shell scripting fundamentalsLearn to write simple shell scripts that interact with Linux operating systemBuild, maintain, and deploy scripts in a Linux environmentLearn best practices for writing shell scriptsAvoid common pitfalls associated with Bash scriptingGain experience and the right toolset to write your own complex shell scriptsWho 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.

Mastering GitLab 12

Mastering GitLab 12

Author: Joost Evertse

Publisher: Packt Publishing Ltd

ISBN: 9781789534061

Category: Computers

Page: 608

View: 610

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An expert guide to helping you use DevOps techniques with the latest GitLab version to optimize and manage your software workflow Key FeaturesDelve into GitLab's architecture, and install and configure it to fit your environmentLearn about the underlying principles of Agile software development and DevOpsExplore Gitlab's features to manage enterprise cloud-native applications and servicesBook Description GitLab is an open source repository management and version control toolkit with functions for enterprises and personal software projects. It offers configurability options, extensions, and APIs that make it an ideal tool for enterprises to manage the software development life cycle. This book begins by explaining GitLab options and the components of the GitLab architecture. You will learn how to install and set up GitLab on-premises and in the cloud, along with understanding how to migrate code bases from different systems, such as GitHub, Concurrent Versions System, Team Foundation Version Control, and Subversion. Later chapters will help you implement DevOps culture by introducing the workflow management tools in GitLab and continuous integration/continuous deployment (CI/CD). In addition to this, the book will guide you through installing GitLab on a range of cloud platforms, monitoring with Prometheus, and deploying an environment with GitLab. You'll also focus on the GitLab CI component to assist you with creating development pipelines and jobs, along with helping you set up GitLab runners for your own project. Finally, you will be able to choose a high availability setup that fits your needs and helps you monitor and act on results obtained after testing. By the end of this book, you will have gained the expertise you need to use GitLab features effectively, and be able to integrate all phases in the development process. What you will learnInstall GitLab on premises and in the cloud using a variety of configurationsConduct data migration from the SVN, TFS, CVS, and GitHub platforms to GitLabUse GitLab runners to develop different types of configurations in software developmentPlan and perform CI/CD by using GitLab featuresMonitor and secure your software architecture using Prometheus and GrafanaImplement DevOps culture by introducing workflow management tools in GitLabWho this book is for If you are a software developer, DevOps professional, or any developer who wants to master GitLab for productive repository management in your day-to-day tasks, this book is for you. Basic understanding of the software development workflow is assumed.

Learning the Bash Shell

Learning the Bash Shell

Author: Cameron Newham

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596009656

Category: Computers

Page: 333

View: 822

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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

Linux Command Line and Shell Scripting Bible

Linux Command Line and Shell Scripting Bible

Author: Richard Blum

Publisher: John Wiley & Sons

ISBN: 9781118983843

Category: Computers

Page: 816

View: 121

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A guide to the Linux command line and shell scripts covering such topics as using Linux environment variables, working with editors, using structured commands, handling user input, creating functions, and working with Regular Expressions.

Learning Linux Shell Scripting

Learning Linux Shell Scripting

Author: Ganesh Sanjiv Naik

Publisher: Packt Publishing Ltd

ISBN: 9781788991537

Category: Computers

Page: 332

View: 872

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Break through the practice of writing tedious code with shell scripts Key Features Learn to impeccably build shell scripts and develop advanced applications Create smart solutions by writing and debugging scripts A step-by-step tutorial to automate routine tasks by developing scripts Book Description Linux is the most powerful and universally adopted OS. 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 reads this file and acts on commands as if they were typed on the keyboard. Learning Linux Shell Scripting covers Bash, GNU Bourne Again Shell, preparing you to work in the exciting world of Linux shell scripting. CentOS is a popular rpm-based stable and secured Linux distribution. Therefore, we have used CentOS distribution instead of Ubuntu distribution. Linux Shell Scripting is independent of Linux distributions, but we have covered both types of distros. We start with an introduction to the Shell environment and basic commands used. Next, we explore process management in Linux OS, real-world essentials such as debugging and perform Shell arithmetic fluently. You'll then take a step ahead and learn new and advanced topics in Shell scripting, such as decision making, starting up a system, and customizing a Linux environment. You will also learn about grep, stream editor, and AWK, which are very powerful text filters and editors. Finally, you'll get to grips with taking backup, using other language scripts in Shell Scripts as well as automating database administration tasks for MySQL and Oracle. 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 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, dialogs to develop screens & Database administration such as MySQL or Oracle Start up a system and customize a Linux system Taking backup of local or remote data or important files. Use existing other language scripts such as Python, Perl & Ruby in Shell Scripts Who this book is for Learning Linux Shell Scripting is ideal for those who are proficient at working with Linux and want to learn about shell scripting to improve their efficiency and practical skills.

Learning the Unix Operating System

Learning the Unix Operating System

Author: Jerry Peek

Publisher: "O'Reilly Media, Inc."

ISBN: 0596002610

Category: Computers

Page: 157

View: 336

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A handy book for someone just starting with Unix or Linux, and 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 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.

Learning Modern Linux

Learning Modern Linux

Author: Michael Hausenblas

Publisher: "O'Reilly Media, Inc."

ISBN: 9781098108915

Category: Computers

Page: 260

View: 685

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Whether you're new to Linux or have some experience, this practical book shows you how to master various tasks with this operating system—not just system administration. Cloud native professionals including developers, architects, DevOps practitioners, and site reliability engineers will learn how to use and program Linux in different modern environments, from embedded systems such as the Raspberry Pi to the virtual machine of your cloud provider of choice. Along the way, you'll gain hands-on experience with modern terminals, shells, and commands, use Linux networking, and learn how to manage your workloads, all with the goal of implementing modern Linux observability. You'll also understand how to run Linux applications in modern ways by using containers, systemd, modern filesystems, and immutable distros such as Flatcar and Bottlerocket. With this book, you will: Use Linux as a modern programming environment, not just as an admin tool Learn critical components such as the kernel, terminal multiplexer, human-friendly shells, and portable scripting Become familiar with access control, from file permissions to capabilities Understand the role of filesystems as a fundamental building block in Linux Gain hands-on experience with the Linux networking stack and tooling Learn how to apply modern operating system observability to manage your workloads Share data using SSH, rsync, and cloud sync mechanisms

Learning the Bash Shell

Learning the Bash Shell

Author: Cameron Newham

Publisher: "O'Reilly Media, Inc."

ISBN: 1565923472

Category: Computers

Page: 318

View: 160

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Finally, Learning the bash Shell, Second Edition, shows you how to acquire, install, configure, and customize bash, and gives advice to system administrators managing bash for their user community.

Learning the Vi and Vim Editors

Learning the Vi and Vim Editors

Author: Arnold Robbins

Publisher: "O'Reilly Media, Inc."

ISBN: 9781492078777

Category: Computers

Page: 548

View: 347

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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 usingit as an IDE

Linux+ Guide to Linux Certification

Linux+ Guide to Linux Certification

Author: Jason Eckert

Publisher: Cengage Learning

ISBN: 9781133416623

Category: Computers

Page: 800

View: 403

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LINUX+ GUIDE TO LINUX CERTIFICATION, THIRD EDITION offers the most up-to-date information to empower users to successfully pass CompTIA's Linux+ (Powered by LPI) Certification exam, while maintaining a focus on quality, classroom usability, and real-world experience. This complete guide provides not only the conceptual knowledge, but also the hands-on skills necessary to work with the Linux operation systems in a network administration environment. Comprehensive coverage includes updated information pertinent to the latest Linux distributions, as well as new storage technologies such as LVM and ext4. Readers will learn about new and expanded material on key job-related networking services including FTP, NFS, Samba, Apache, DNS, DHCP, NTP, RADIUS, LDAP, Squid, Sendmail, Postfix, X, SSH, VNC, SQL, and updated information on security practices and technologies. The Hands-On Projects help learners practice new skills, and review questions and key terms reinforce important concepts. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.

Mastering Linux Shell Scripting,

Mastering Linux Shell Scripting,

Author: Mokhtar Ebrahim

Publisher: Packt Publishing Ltd

ISBN: 9781788990158

Category: Computers

Page: 284

View: 931

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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.

Sams Teach Yourself Red Hat Fedora 4 Linux All in One

Sams Teach Yourself Red Hat Fedora 4 Linux All in One

Author: Aron Hsiao

Publisher: Sams Publishing

ISBN: 9780672327070

Category: Computers

Page: 705

View: 508

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Join an estimated 85% of the U.S. Linux market in using Red Hat's Linux distributions by learning it from a Fedora authority.Sams Teach Yourself Red Hat Fedora 4 All in Oneis a starter kit that will help you install, configure, and use Red Hat's Fedora 4 distribution and desktop applications. The easy-to-understand, step-by-step instructions will also show you how to: Use the OpenOffice.org productivity suite and other leading applications. Troubleshoot hardware issues and install new components. Set up a small Linux-based network to share files and resources. Also included is a DVD, which will provide you with the complete Fedora Core Linux distribution, OpenOffice.org desktop suite, and the leading applications for e-mail, Web browsing, and graphics. Find out how you can safely and reliably use Linux and Linux-based applications to accomplish your day-to-day work in the office and at home withSams Teach Yourself Red Hat Fedora 4 All in One.