- Taschenbuch: 384 Seiten
- Verlag: Packt Publishing; Auflage: 2nd Revised ed. (21. Mai 2013)
- Sprache: Englisch
- ISBN-10: 1782162747
- ISBN-13: 978-1782162742
- Größe und/oder Gewicht: 19 x 2,2 x 23,5 cm
- Durchschnittliche Kundenbewertung: Schreiben Sie die erste Bewertung
- Amazon Bestseller-Rang: Nr. 580.159 in Fremdsprachige Bücher (Siehe Top 100 in Fremdsprachige Bücher)
Linux Shell Scripting Cookbook, Second Edition (Englisch) Taschenbuch – 21. Mai 2013
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Über den Autor und weitere Mitwirkende
Shantanu Tushar is an advanced GNU/Linux user since his college days. He works as an application developer and contributes to the software in the KDE projects.
Shantanu has been fascinated by computers since he was a child, and spent most of his high school time writing C code to perform daily activities. Since he started using GNU/Linux, he has been using shell scripts to make the computer do all the hard work for him. He also takes time to visit students at various colleges to introduce them to the power of Free Software, including its various tools. Shantanu is a well-known contributor in the KDE community and works on Calligra, Gluon and the Plasma subprojects. He looks after maintaining Calligra Active KDE's office document viewer for tablets, Plasma Media Center, and the Gluon Player. One day, he believes, programming will be so easy that everybody will love to write programs for their computers.
Shantanu can be reached by e-mail on firstname.lastname@example.org, shantanutushar on identi.ca/twitter, or his website http://www.shantanutushar.com.
Sarath Lakshman is a 23 year old who was bitten by the Linux bug during his teenage years. He is a software engineer working in ZCloud engineering group at Zynga, India. He is a life hacker who loves to explore innovations. He is a GNU/Linux enthusiast and hactivist of free and open source software. He spends most of his time hacking with computers and having fun with his great friends. Sarath is well known as the developer of SLYNUX (2005)a user friendly GNU/Linux distribution for Linux newbies. The free and open source software projects he has contributed to are PiTiVi Video editor, SLYNUX GNU/Linux distro, Swathantra Malayalam Computing, School-Admin, Istanbul, and the Pardus Project. He has authored many articles for the Linux For You magazine on various domains of FOSS technologies. He had made a contribution to several different open source projects during his multiple Google Summer of Code projects. Currently, he is exploring his passion about scalable distributed systems in his spare time. Sarath can be reached via his website http://www.sarathlakshman.com.
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The book is precisely focused on shell scripting and is therefore always right to the point. So you won't find information on how to install Linux but as this is one of the easier parts you can find a lot of good information on the internet and nowadays setting up a Linux machine is quite easy.
If you have Linux installed this book helps you to jump right into the topic. In the introduction of chapter 1 you get the basics about the shell environment you need just enough to start scripting. For example it is explained what does the prompt look like, the structure of a shell script and how to start it. And some handy information to avoid unnecessary typing using the history.
After the introduction of each chapter the book starts with recipes. Each recipe is introduced with a short objective of a recipe and then it has more or less always the same structure. Getting ready gives a brief overview of the commands and syntax used in the following sections. How to do it shows how the commands are used that support the objective. The explanation is done on practical and real life examples that can be used in your day to day work. In some recipes you get also deeper information in the But there is more section that can be skipped at a first read and referenced later when topic comes up in combination with other recipes.
As this book's title denotes the content is presented as a cookbook. In a cookbook you can assume to jump into a specific topic and than just program along. But I would recommend before starting to read the first chapter as it explains all basic elements of a shell script like variable assignment, arrays, functions and other programming structures as well as debugging tools and strategies. After chapter 1 you have enough information to tackle the recipes in following chapters.
Chapter 2 and chapter 3 provide a comprehensive set of recipes on file manipulation. Chapter 2 is more focused on recipes you will need in your day to day work, like finding, copying and moving files. Chapter 3 has more sophisticated recipes like file comparison to find out the differences between two files.
Chapter 4 is about the content of files, that is finding and manipulating the content of a file. The chapter starts with an introduction into regular expressions and some often used patterns like e-mail address validation are provided.
Especially interesting to me was chapter 5 which goes beyond the Linux operating system but shows how to use shell scripting for accessing the web. I liked the recipe about cURL, a very sophisticated and comprehensive tool for accessing the web through a lot of different web protocols. This recipe gives you a kick start into cURL with the commands you will use 80% of your time when down or uploading files from or to the web or another file system.
The book does not only cover topics you would need as a regular Linux user but also provides recipes for administration tasks. And from my experience the book covers the main commands that you would need to administer your private Linux home network to keep it up and running. The chapters 6, 8 and 9 cover backup tools, tools for monitoring you system and manipulating or running automatically scheduled processes with cron jobs.
And finally chapter 7 has a lot to say about setting up a network. The topics cover file transfer between computers or logging in to remote computers using ssh.
If you are a programmer of a programming language that uses a lot the Linux shell like Python, Ruby or Ruby on Rails than I also can recommend this book. It covers the topics you will need when mainly working with the console and not using an IDE. Especially useful I consider in this regard the topics how to find files, how to compare files, how to find a specific content of a file that you need to refactor. SSH without login is also very useful when working with Ruby on Rails and administrating an application server like passenger. Also the brief introduction into Git serves as a good start into managing and archiving your source files like the scripts you generate based on the knowledge gained from the book. The section finding broken links on a web site is very helpful when working as a web developer.
So all in all this book is a very helpful companion whether you are using Linux as a regular user or as an administrator. And if you are a developer you find a lot of valuable commands and recipes that make your programming life easier. It is a book you should have handy when you are one of the above mentioned users to make your life easier with Linux.
Concepts has to be explained.
Usually, a "cookbook" is set up more like a series of projects organized around a set of themes, and is usually less introductory than this book. "Linux Shell Scripting Cookbook" might be better titled "Introduction to Linux Shell Scripting" because it is more like a tutorial and a how too book than like a cookbook. Nonetheless, it is an excellent tutorial that includes over 100 "recipes" that address a diversity of applications. It's just that they are organized more like a tutorial. What this means is that a beginner can use only the resources in this book and get results. The various recipes are organized in an order that brings the reader through basics (like how to use the terminal, how to mess with environment variables, etc.) then on to more complex topics such as regular expressions, manipulating text, accessing web pages, and archiving. One very nice set of scripts that is not often found in intro books addresses networking. The book also covers MySQL database use.
All of the scripts are available from the publisher in a well organized zip archive.
I read the e-version of the book, in iBooks, but the PDF version is very nice as well. I don't know how this would translate as at Kindle book. But, importantly (and this may be more common now than not) the ebook uses all text, unlike some earlier versions of ebooks that used photographs of key text snippets as graphics which essentially renders them useless. Of course, copy and paste from a ebook is difficult, and that is where the zip file of scrips comes in. You can open the PDF file, get the zip archive, and as you read through examples simply open up (or copy and paste) the scripts from the zip archive and modify or run them. Also, the ebook is cheaper than a paper edition and clearly takes up way less space!
If I was going to recommend a starting out guide to shell scripting this is the book I'd recommend right now. It is well organized and well executed.
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