Introduction to Bash Scripting



Free Introduction to Bash Scripting For developers eBook

This is an open-source introduction to Bash scripting guide/ebook that will help you learn the basics of Bash scripting and start writing awesome Bash scripts that will help you automate your daily SysOps, DevOps, and Dev tasks. No matter if you are a DevOps/SysOps engineer, developer, or just a Linux enthusiast, you can use Bash scripts to combine different Linux commands and automate boring and repetitive daily tasks, so that you can focus on more productive and fun things.

The guide is suitable for anyone working as a developer, system administrator, or a DevOps engineer and wants to learn the basics of Bash scripting.


To download a copy of the ebook use one of the following links:

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The first 13 chapters would be purely focused on getting some solid Bash scripting foundations then the rest of the chapters would give you some real life examples and scripts.

  • About the book
  • Introduction to Bash scripting
  • Bash Structure
  • Bash Hello World
  • Bash Variables
  • Bash User Input
  • Bash Comments
  • Bash Arguments
  • Bash Arrays
  • Bash Conditional Expressions
  • Bash Conditionals
  • Bash Loops
  • Bash Functions
  • Debugging, testing and shortcuts
  • Creating custom bash commands
  • Write your first Bash script
  • Creating an interactive menu in Bash
  • Executing BASH scripts on Multiple Remote Servers
  • Work with JSON in BASH using jq
  • Working with Cloudflare API with Bash
  • BASH Script parser to Summarize Your NGINX and Apache Access Logs
  • Sending emails with Bash and SSMTP
  • Bash Password Generator
  • Redirection in Bash
  • Wrap Up


This book is made possible thanks to these fantastic companies!


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Web Page

A web page showcasing the eBook:

Introduction to Bash Scripting Web Page

The web page was built using Tails, a new kick-ass drag-and-drop TailwindCSS page builder!

DigitalOcean App Platform

The website is hosted on the DigitalOcean App Platform.

We utilize the “Deploy to DigitalOcean” Button to deploy to the App Platform: Video Course
If you prefer watching videos rather than reading, you can find a quick crash course based on the first 12 chapters of the eBook here:

Introduction to Bash Scripting Mini Video Crash Course

💻 Interactive training
You can follow the interactive training online here:

Introduction to Bash Scripting Interactive training

The training was built with Katacoda. You can find the Katacoda repository here.

For more information on how to use Katacoda make sure to follow the steps from this tutorial here:

How to Use Katacoda to Create Highly Engaging Training Tutorials

👋 About the author
My name is Bobby Iliev, and I have been working as a Linux DevOps Engineer since 2014. I am an avid Linux lover and supporter of the open-source movement philosophy. I am always doing that which I cannot do in order that I may learn how to do it, and I believe in sharing knowledge.

I think it's essential always to keep professional and surround yourself with good people, work hard, and be nice to everyone. You have to perform at a consistently higher level than others. That's the mark of a true professional.

For more information, please visit my blog at, follow me on Twitter @bobbyiliev_ and YouTube.

In case that you want to support me you can By Me a Coffee here:

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