Mastering Linux Shell Scripting,: A practical guide to Linux command-line, Bash scripting, and Shell programming, 2nd Edition (English Edition)

Mastering Linux Shell Scripting,: A practical guide to Linux command-line, Bash scripting, and Shell programming, 2nd Edition (English Edition)

作者
Mokhtar Ebrahim、Andrew Mallett
语言
英语
电子书格式
epub,pdf,mobi,azw3,txt,fb2,djvu
下载次数
2130
更新日期
2023-08-09
运行环境
PC/Windows/Linux/Mac/IOS/iPhone/iPad/iBooks/Kindle/Android/安卓/平板
内容简介

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

Use the command line and conditional statements for creating and executing simple shell scripts

Create and edit dynamic shell scripts to manage complex and repetitive tasks

Book Description

Mastering shell scripting is made easy with this book that guides you through everything, right from using the Linux command line through to creating Bash scripts, while also helping you make informed choices about the elements you employ.

You can use your favorite editor and start writing Bash scripts in a step-by-step manner. The book will also help you get to grips with the fundamentals of creating and running a script in normal mode, as well as in debug mode. You'll explore code snippets from various conditional statements, and realize the power of repetition and loops in your shell script. You will gradually learn to write complex shell scripts, before delving into file system administration, directories, and system administration such as networking, process management, user authentication, package installation, and regular expressions. Toward the concluding chapters, you will learn how to use Python as an alternative for Bash scripting.

By the end of this book, you will be well-versed with shell scripts and have mastered the technique of automating and communicating with your system through keyboard expressions.

What you will learn

Develop, execute, and debug your first Bash script

Create interactive scripts that prompt for user input

Build 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 log files and generate reports

Draft effective scripts using functions as building blocks, reducing maintenance and build time

Compare different script languages such as Python with Bash

Use the command line to bypass the graphical user interface (GUI) and automate common tasks

Who This Book Is For

If you are a Linux administrator or a system administrator and are interested in automating daily tasks to save time and effort, then this book is for you. Basic shell scripting and command-line experience will be required. Familiarity with the tasks you need to automate will also be helpful.

Table of Contents

What and Why of Scripting with BASH

Creating Interactive Scripts

Conditions attached

Creating Code Snippets

Alternative syntax

Iterating with Loops

Creating Building Blocks with Functions

Introducing sed

Automating Apache Virtual Hosts

AWK Fundamentals

Regular expressions

Summarizing Logs with awk

A Better lastlog with Awk

Using Python as a BASH Scripting Alternative

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