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title: How to Start Writing a Simple Bash Script in 2025 description: Learn the basics of writing a simple Bash script in 2025 with this step-by-step guide. keywords: bash scripting, bash script 2025, bash tutorial, bash file execution, arrays in bash scripts author: Your Name date: 2025-01-01

Bash scripting remains an invaluable skill for developers and system administrators in 2025. Whether you’re automating tasks, managing files, or running complex commands, Bash scripts can significantly simplify your workflow. This guide will walk you through the process of starting a simple Bash script, with a focus on writing beginner-friendly code.

What You Need to Get Started

Before diving into writing your first Bash script, ensure you have:

• A Unix-like operating system (Linux, macOS, or Windows Subsystem for Linux)
• A text editor like nano, vim, or Visual Studio Code to write your scripts
• Access to a terminal or command-line interface

Step-by-Step Guide to Writing a Bash Script

Step 1: Create a New Bash File

1. Open your terminal.

2. Navigate to the directory where you want to store your script.

3. Use a text editor to create a new file with a .sh extension. For example:

   nano my_first_script.sh

Step 2: Add the Shebang

The first line of any Bash script should be the shebang. This tells the terminal which interpreter to use to run the script:

#!/bin/bash

Step 3: Write Your First Script

Start with a simple script that outputs “Hello, World!” to the terminal:

#!/bin/bash


echo "Hello, World!"

Step 4: Make the Script Executable

Before executing the script, you need to grant it executable permissions:

chmod +x my_first_script.sh

Step 5: Run Your Script

Execute your script using:

./my_first_script.sh

For more details on bash file execution, refer to this useful guide.

Introduction to Bash Arrays

Bash arrays allow you to store multiple values in a single variable. Arrays can be indexed numerically, starting from zero.

Declaring an Array

Here’s how you declare and use an array in Bash:

#!/bin/bash


my_array=("apple" "banana" "cherry")


echo "The first fruit is: ${my_array[0]}"

To delve deeper into using arrays in Bash scripts, check out this comprehensive tutorial.

Conclusion

Congratulations! You’ve taken your first steps into Bash scripting. With the foundational knowledge provided above, you’re ready to explore more complex scripts and integrate Bash scripting into your daily tasks. Keep practicing, and soon you’ll be able to automate much of your workflow with ease.

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Remember, the power of scripting lies in its ability to enhance productivity and efficiency. Happy scripting!