Mastering Linux Shell Scripting - Second Edition

A practical guide to Linux command-line, Bash scripting, and Shell programming

Mokhtar Ebrahim , Andrew Mallett 지음

Packt(GCO Science) 2018년 04월 19일 출간

작품소개

책소개

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목차

▶TABLE of CONTENTS
1: THE WHAT AND WHY OF SCRIPTING WITH BASH
2: CREATING INTERACTIVE SCRIPTS
3: CONDITIONS ATTACHED
4: CREATING CODE SNIPPETS
5: ALTERNATIVE SYNTAX
6: ITERATING WITH LOOPS
7: CREATING BUILDING BLOCKS WITH FUNCTIONS
8: INTRODUCING THE STREAM EDITOR
9: AUTOMATING APACHE VIRTUAL HOSTS
10: AWK FUNDAMENTALS
11: REGULAR EXPRESSIONS
12: SUMMARIZING LOGS WITH AWK
13: A BETTER LASTLOG WITH AWK
14: USING PYTHON AS A BASH SCRIPTING ALTERNATIVE

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출판사 서평

▶Editorial Review
First, you'll learn about Linux shells and why we chose the bash shell. Then, you'll learn how to write a simple bash script and how to edit your bash script using Linux editors.

Following this, you will learn how to define a variable and the visibility of a variable. After this, you will learn how to store command execution output into a variable, which is called command substitution. Also, you will learn how to debug your code using bash options and Visual Studio Code. You will learn how to make your bash script interactive to the user by accepting input from the user using the read command. Then, you will learn how to read options and its values if the user passed them to the script. Following this, you will learn how to write conditional statements such as if statements and how to use case statements. After this, you will learn how to create code snippets using vim and Visual Studio Code. For repetitive tasks, you will see how to write for loops, how to iterate over simple values, and how to iterate over directory content. Also, you will learn how to write nested loops. Along with this, you will write while and until loops. Then, we will move on to functions, the reusable chunks of code. You will learn how to write functions and how to use them. After this, you will be introduced to one of the best tools in Linux, which is Stream Editor. As we are still talking about text processing, we will introduce AWK, one of the best text processing tools in Linux that you will ever see.

After this, you will learn how to empower your text processing skills by writing better regular expressions. Finally, you will be introduced to Python as an alternative to bash scripting.

작가정보

저자(글) Mokhtar Ebrahim

Mokhtar Ebrahim started by working as a PHP developer since 2005 as a freelancer then he worked for some Egyptian companies as a full-time developer. After that, he shifted his work to GNU/Linux and server administration since 2010 during his work in Royal Commission in Saudi Arabia. He is responsible for maintaining, securing, and troubleshooting Linux servers for multiple clients around the world. He loves writing shell and Python scripts to automate his work. He writes technical articles on his website about Linux, Python, web development, and server administration. He is a father to a beautiful girl and a husband to a faithful wife.

저자(글) Andrew Mallett

Andrew Mallett is the owner of The Urban Penguin and is a comprehensive provider for professional Linux software development, training, and services. Having always been a command-line fan, he feels that so much time can be saved through knowing command-line shortcuts and scripting. TheUrbanPenguin YouTube channel, maintained by Andrew, has well over 800 videos to support this and he has authored four other Packt titles.