https://www.packtpub.com/networking-and-servers/learning-linux-shell-scripting

Linux is the one of the most powerful and universally adopted OSes. 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 can read this file and act on the commands as if they were typed on the keyboard. Shell scripting is used to automate day-to-day administration, and for testing or product development tasks.

This book covers Bash, GNU Bourne Again SHell, preparing you to work in the exciting world of Linux shell scripting. We start with an introduction to the Shell environment and explain basic commands used in Shell. Next we move on to check, kill, and control the execution of processes in Linux OS. Further, we teach you about the filter tools available in Linux and explain standard output and standard errors devices.

Then we will ensure you understand Shell’s interpretation of commands and get a firmer grasp so you use them in practice. Next, you’ll experience some real-world essentials such as debugging and perform Shell arithmetic fluently. Then you’ll take a step ahead and learn new and advanced topics in Shell scripting, such as starting up a system and customizing a Linux system. Finally, you’ll get to understand the capabilities of scripting and learn about Grep, Stream Editor, and Awk.

Authors

Ganesh Sanjiv Naik

Ganesh Sanjiv Naik is an author, consultant, and corporate trainer for embedded Android, embedded Linux, and Internet of Things related product development.

He completed his computer engineering in 1988. Since then, he has worked in this industry. He has worked on projects including micro-controller based projects to advanced Embedded Android projects. He has more than 20 years of professional experience and project accomplishment in information technology.

Ganesh has a passion and deep desire for teaching. He has trained 1,000 engineers in Linux and Android product development. He has developed a lot of training material as well as curriculum for various universities and training institutes.

He has an interest in spiritual study and practices such as meditation. He is a certified yoga teacher. His hobbies include yoga and martial arts.

He has worked as a corporate trainer for Indian Space Research Organization, Intel, GE, Samsung, Motorola, Penang Skill Development Center (Malaysia), various companies in Singapore as well as various other corporates in India and other countries. He has started a company called Levana Technologies, which works with the Penang Skill Development Center (Malaysia) for consulting and training activities. If you would like to send feedback, suggestions, or corrections in the book, he can be contacted at https://in.linkedin.com/in/naikganesh.

This book is his real-life experience….

He has worked as a consultant and corporate trainer in the following skills:

Internet of Things

Embedded Android, Android internals, and device driver development

USB and PCI device driver development in Linux

Embedded Linux and device driver development

Unix Shell scripting with sed and awk

Embedded C++ and C programming

Operating systems, software engineering, and networking

Problem solving—analysis, reasoning, and solution techniques for software engineers