Shell Mastery

Harness the power of shells . . . for the Internet and beyond Completely revised and updated to include the latest developments in Internet and business applications, UNIX Shell Programming, Fourth Edition provides comprehensive coverage of Bourne, Korn, C, and BASH shells. Using a specially developed three-step process, this invaluable guide takes you through the entire universe of UNIX shell, from simple commands and programming to the world of software developers and system administrators. Using this comprehensive book, you'll be able to choose the shell that's right for you -whatever your needs or background. UNIX Shell Programming, Fourth Edition gives you: * Practical guidance on how to create CGI scripts, object warehouses, and reuse catalogs * Everything on shell extensions for management of distributed environments * A special shell reference appendix containing real-life examples that you can use right now Visit the book's companion Web site at www.wiley.com/compbooks/unixshell

Unlock the full potential of Linux shell scripting with this comprehensive guide. Whether you're a novice or an experienced user, "Shell Mastery" equips you with the skills to automate tasks, streamline system administration, and unleash the power of the command line. From essential scripting fundamentals to advanced techniques like regular expressions and error handling, this book covers everything you need to know to become a proficient shell scripter. Dive into real-world examples, practical exercises, and expert insights to master the art of shell scripting. With clear explanations and step-by-step instructions, "Shell Mastery" is the ultimate resource for anyone looking to harness the full capabilities of Linux shell scripting. Take control of your Linux system and automate your workflow like never before with this essential guide

This third edition of Leadership in Organizations: Current Issues and Key Trends builds on the success of the previous versions, with new and updated chapters providing fresh and lively insights into a subject that can often be tricky to pin down. Leadership in Organizations carefully balances theory and practice, including critical perspectives, to examine fundamental questions about the meaning of leadership, its use and its development. Readers will benefit from the text’s rich use of cases and examples of real-life tensions, challenges and successful outcomes of leadership practice. The book also sets itself apart through its distinctive focus on leadership within the wider contexts of politics, economics and public policy, as well as organizational behaviour and management. New elements for this edition include: The moral pitfalls of leadership Leadership roles under crisis conditions Fresh analysis of the impact of leadership on performance outcomes This is the ideal text for advanced students of leadership studies, as well as practitioners looking to deepen their understanding of the leadership process and to enhance their leadership skills.

"A history of shells in early modern Europe, and their rich cultural and artistic significance"--

Focusing on lyric poetry, Mastery's End looks at important, yet neglected, issues of subjectivity in post-World War II travel literature. Jeffrey Gray departs from related studies in two regards: nearly all recent scholarly books on the literature of travel have dealt with pre-twentieth-century periods, and all are concerned with narrative genres. Gray questions whether the postcolonial theoretical model of travel as mastery, hegemony, and exploitation still applies. In its place he suggests a model of vulnerability, incoherence, and disorientation to reflect the modern destabilizing nature of travel, a process that began with the unprecedented movement of people during and after World War II and has not abated since. What the contemporary discourse concerning displacement, border crossing, and identity needs, says Gray, is a study of that literary genre with the least investment in closure and the least fidelity to ethnic and national continuities. His concern is not only with the psychological challenges to identity but also with travel as a mode of understanding and composition. Following a summary of American critical perspectives on travel from Emerson to the present, Gray discusses how travel, by nature, defamiliarizes and induces heightened awareness. Such phenomena, Gray says, correspond to the tenets of modern poetics: traversing territories, immersing the self in new object worlds, reconstituting the known as unknown. He then devotes a chapter each to four of the past half-century's most celebrated English-speaking, western poets: Elizabeth Bishop, Robert Lowell, John Ashbery, and Derek Walcott. Finally, two multi-poet chapters examine the travel poetry of Allen Ginsberg, Gary Snyder, and Robert Creeley, Lyn Hejinian, Nathaniel Mackey and others.

Design, develop, and solve real-world automation and orchestration problems by unlocking Ansible's automation capabilities Key FeaturesCompletely revised and updated for Ansible 4.0 and beyondTackle complex automation challenges with the newly added features in AnsibleLearn about the rapidly expanding field of network automation using Ansible, with the help of practical examples for configuring network devicesBook Description Ansible is a modern, YAML-based automation tool (built on top of Python, one of the world's most popular programming languages) with a massive and ever-growing user base. Its popularity and Python underpinnings make it essential learning for all in the DevOps space. This fourth edition of Mastering Ansible provides complete coverage of Ansible automation, from the design and architecture of the tool and basic automation with playbooks to writing and debugging your own Python-based extensions. You'll learn how to build automation workflows with Ansible's extensive built-in library of collections, modules, and plugins. You'll then look at extending the modules and plugins with Python-based code and even build your own collections — ultimately learning how to give back to the Ansible community. By the end of this Ansible book, you'll be confident in all aspects of Ansible automation, from the fundamentals of playbook design to getting under the hood and extending and adapting Ansible to solve new automation challenges. What you will learnGain an in-depth understanding of how Ansible works under the hoodGet to grips with Ansible collections and how they are changing and shaping the future of AnsibleFully automate the Ansible playbook executions with encrypted dataUse blocks to construct failure recovery or cleanupExplore the playbook debugger and Ansible consoleTroubleshoot unexpected behavior effectivelyWork with cloud infrastructure providers and container systemsWho this book is for If you are an Ansible developer or operator who has a detailed understanding of its core elements and applications but are now looking to enhance your skills in applying automation using Ansible, this book is for you. Prior experience working with core system administration tasks on Linux and basic familiarity with concepts such as cloud computing, containers, network devices, and fundamentals of a high-level programming language will help you make the most of this book.

Secure Shell (SSH) lets systems administrators securely manage remote systems. But most people only use the bare minimum SSH offers. Used properly, SSH simplifies your job. This book saves you from sifting a decade of obsolete online tutorials and quickly gets you running: SSH with the OpenSSH server and the PuTTY and OpenSSH clients. You will: Eliminate passwords. Manage access to your SSH server by users, groups, addresses, and more Securely move files around your network Forward graphic displays from one host to another Forward TCP connections Centrally manage host keys and client configurations Use SSH as a secure transport for other applications Secure applications run over SSH Build Virtual Private Networks with OpenSSH And more! This book simplifies the work of anyone using SSH. Small enough to read and implement quickly, exhaustive enough to include everything most of us need plus a little more. Master SSH with SSH Mastery.

A profoundly inspiring and transformative argument that purposeful commitment and civic engagement can be a powerful force in today’s age of restlessness and indecision. Most of us have had this experience: browsing through countless options on Netflix, unable to commit to watching any given movie—and losing so much time skimming reviews and considering trailers that it’s too late to watch anything at all. In a book inspired by an idea first articulated in a viral commencement address, Pete Davis argues that this is the defining characteristic of the moment: keeping our options open. We are stuck in “Infinite Browsing Mode”—swiping through endless dating profiles without committing to a single partner, jumping from place to place searching for the next big thing, and refusing to make any decision that might close us off from an even better choice we imagine is just around the corner. This culture of restlessness and indecision, Davis argues, is causing tension in the lives of young people today: We want to keep our options open, and yet we yearn for the purpose, community, and depth that can only come from making deep commitments. In Dedicated, Davis examines this quagmire, as well as the counterculture of committers who have made it to the other side. He shares what we can learn from the “long-haul heroes” who courageously commit themselves to particular places, professions, and causes—who relinquish the false freedom of an open future in exchange for the deep fulfillment of true dedication. Weaving together examples from history, personal stories, and applied psychology, Davis’s “insightful without being preachy…guide to commitment should be on everyone’s reading list” (Booklist, starred review).