Bash Scripting Cheatsheet

Overview

Welcome to the Bash Scripting Cheatsheet repository! This project aims to provide a comprehensive collection of Bash scripting examples, commands, and best practices. Whether you're a beginner or an experienced developer, this cheatsheet is designed to help you quickly find solutions to common Bash scripting tasks and improve your scripting skills.

Table of Contents

• Introduction
• Getting Started
• Cheatsheet Contents
• Examples
• Contributing
• License

Introduction

Bash is a powerful scripting language used for automating tasks, managing systems, and creating utilities. This cheatsheet serves as a quick reference guide for common Bash commands, patterns, and practices that are useful in day-to-day scripting.

Getting Started

Prerequisites

Before using this cheatsheet, make sure you have Bash installed on your system. Most Unix-like operating systems, including Linux and macOS, come with Bash pre-installed. You can check your Bash version by running:

bash --version

Cloning the Repository

To use the cheatsheet locally, clone the repository to your machine:

git clone https://github.com/vfedotovs/bash-scripting-cheatsheet.git
cd bash-scripting-cheatsheet

Cheatsheet Contents

This repository is organized into various sections, each covering different aspects of Bash scripting:

Basic Commands: Commonly used Bash commands and utilities.
Control Structures: Loops, conditionals, and case statements.
Functions: Defining and using functions in Bash.
Arrays: Working with indexed and associative arrays.
String Manipulation: Techniques for handling and processing strings.
File Operations: Reading, writing, and manipulating files.
Process Management: Running, managing, and automating processes.
Debugging: Tips and commands for debugging Bash scripts.
Best Practices: Guidelines for writing clean, maintainable scripts.

Examples

Here are some examples of the scripts and commands you'll find in this cheatsheet:

1. Looping Over an Array

declare -a fruits=("Apple" "Banana" "Cherry")

for fruit in "${fruits[@]}"; do
  echo "I like $fruit"
done

2. Checking if a File Exists

if [ -f "/path/to/file" ]; then
  echo "File exists."
else
  echo "File does not exist."
fi

3. Using a Function to Sum Numbers

sum_numbers() {
  local sum=0
  for number in "$@"; do
    sum=$((sum + number))
  done
  echo "Sum: $sum"
}

sum_numbers 1 2 3 4 5

Contributing

Contributions are welcome! If you'd like to add new examples, fix issues, or improve the content, please feel free to submit a pull request. Before contributing, please review the contributing guidelines.

License

This repository is licensed under the MIT License. See the LICENSE file for more information.