DevOps Learning Path: A Practical Toolchain Approach

Introduction

Welcome to this practical learning path designed to guide you through the fundamentals of DevOps and automation, starting from scratch. This path follows a toolchain approach, introducing essential tools and concepts sequentially, reinforced with practical labs and best practices. The goal is to build a solid foundation in modern software development, deployment, and operations.

Module 1: Linux Fundamentals and Shell Scripting

Learning Objectives:

• Gain proficiency in navigating and manipulating the Linux command-line environment.
• Understand core Linux concepts like file systems, permissions, and processes.
• Learn to automate tasks using Bash shell scripting.
• Adopt best practices for writing maintainable and secure shell scripts.

Key Concepts: Linux Command-Line

Mastering the Linux command line involves understanding how to interact with the operating system textually. Key operations include:

• Navigation: Using cd to change directories (e.g., cd /var/log, cd.., cd ~), and pwd to print the current directory.
• Viewing Contents: Using ls with flags like a (all files), l (long format), h (human-readable sizes).
• Creating Files/Directories: Using mkdir (e.g., mkdir -p project/src) and touch.
• Copying, Moving, Renaming: Using cp and mv (also for renaming). Wildcards like can be used.
• Deleting: Using rm for files, rm -r for directories (caution!), and rmdir for empty directories.
• Finding Files: Using find, locate, which, whereis.
• Viewing File Contents: Using cat, less, more, head, tail (including tail -f for logs).
• Text Processing: Leveraging grep, wc, sort, uniq, cut, paste, tr, diff, and awk.