Linux Bash Exercises

Overview

This repository contains a set of Bash scripting exercises focused on automation, file handling, loops, functions, and real-world Linux tasks. These exercises are designed to strengthen foundational skills in Linux and shell scripting, especially for DevOps and system administration.

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📂 Exercises Included

1️⃣ File Organization by Extension

Objective: Practice arrays, loops, and file creation.

Requirements:

• Use an array of extensions: txt, log, csv

• Create a folder for each extension

• Inside each folder, create one file named:

  <yourName>.<extension>
  

Concepts Covered:

• variable
• Arrays in Bash
• Looping (for)
• File creation (touch)
• Directory management (mkdir)

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2️⃣ Automated File Generator (25 Files Batch)

Objective: Automate file creation with incremental numbering.

Requirements:

• Create 25 empty files using touch

• File naming format:

  <yourName>1, <yourName>2, ..., <yourName>25
  

• Each run should:

  • Detect the last existing number
  • Continue numbering automatically

• No hardcoding numbers

Concepts Covered:

• variable
• Loops and counters
• Command substitution
• File pattern matching
• Automation logic

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3️⃣ Desktop Cleanup Automation

Objective: Build a reusable function to organize files.

Requirements:

• Create a function: cleanup_desktop
• Create a folder named with today’s date (YYYY-MM-DD)
• Move all files (not folders) into this folder
• Skip folders already named as dates
• Print a message for each moved file

Test Setup:

• Example files:

  • report.txt
  • image.jpg
  • notes.pdf

• Existing folders:

  • 2026-03-17
  • 2026-03-18

Concepts Covered:

• variable
• Functions in Bash
• Date command
• Conditional logic
• File filtering
• Reusability

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Testing

Each script was tested by:

• Running the script in a Linux environment (WSL)

• Using ls -Rl to verify:

  • File creation
  • Correct structure
  • Proper file movement

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Tools Used

• Bash shell
• Linux (WSL environment)
• Core commands: mkdir, touch, mv, ls, date

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Learning Outcomes

By completing these exercises, I gained hands-on experience with:

• Bash scripting fundamentals
• Automation of repetitive tasks
• File and directory manipulation
• Writing reusable and maintainable scripts

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Future Improvements

• Add error handling
• Add logging for script execution
• Extend scripts for real-world automation tasks

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Author

Alicade123 – Linux & DevOps learner LinkedIn - Alicade Abiturije