Linux Fundamentals for IT Professionals using Ubuntu (Udemy.com)

Master Linux & Ubuntu 20.04: Complete Hands-On Training for IT Professionals, DevOps Engineers & System Administrators

Transform Your IT Career with Production-Ready Linux Skills

Become a confident Linux professional and unlock high-paying DevOps, System Administration, and Cloud Engineering opportunities. This comprehensive, hands-on course takes you from Linux fundamentals to advanced server automation using Ubuntu 20.04, AWS cloud infrastructure, and industry-standard tools including Ansible and Python.

Whether you're an application developer, data engineer, QA tester, or aspiring system administrator, you'll gain the practical command-line expertise that employers demand in today's cloud-first IT landscape.

What You'll Master

Core Linux Skills:

• 100+ Essential Linux Commands - ls, find, grep, awk, sed, tail, ssh, scp, and more

• Shell Scripting & Bash Automation - Automate repetitive tasks and boost productivity

• File System Management - Permissions, ownership, user/group management

• Text Processing - Extract, filter, sort, and analyze data from files and logs

• System Monitoring - CPU, memory, storage, and process management

Advanced Administration:

• AWS Cloud Infrastructure - Deploy and manage EC2 instances with Ubuntu

• SSH & Remote Management - Secure authentication, remote execution, parallel SSH

• Networking Fundamentals - IP addresses, ports, security groups, DNS

• Application Deployment - Install, configure, and manage Apache, MongoDB, Jupyter Lab

• Production Troubleshooting - Log analysis, debugging, performance optimization

Enterprise Automation:

• Ansible Server Automation - Playbooks, roles, variables, multi-server management

• Python for Linux - Programmatic automation, parallel processing, remote execution

• DevOps Workflows - CI/CD preparation, infrastructure as code, configuration management

Comprehensive Curriculum

Module 1: Linux Fundamentals & Environment Setup

Set up Ubuntu 20.04 on Windows (WSL), Mac, or Linux. Master the file system hierarchy, absolute vs. relative paths, and basic navigation. Configure Jupyter Lab for interactive practice with real datasets from GitHub.

Module 2: Essential Linux Commands

Master File Listing with ls Command:

• View file properties (permissions, size, timestamps, ownership)

• Sort by time, size, or name

• Work with hidden files and recursive listings

• Create custom aliases for efficiency

Advanced File Filtering with find:

• Search by name, type, size, and modification time

• Filter files across directory structures

• Combine with other commands for powerful workflows

• Process results programmatically

Text Processing Tools:

• Preview files with cat, head, tail, more, and less

• Extract data with cut command

• Sort and deduplicate with sort and uniq

• Real-time log monitoring with tail -f

• Pattern matching with grep and regular expressions

Module 3: File System Permissions & Security

Master Linux ownership model with users, groups, and permission levels. Learn chmod, chown, chgrp, useradd, groupadd, and umask. Implement security best practices for production environments.

Module 4: File & Directory Management

Create, copy, move, rename, and delete files safely. Build compressed archives with tar. Automate file organization using awk and pattern matching. Implement backup strategies for data protection.

Module 5: System Performance Monitoring

Analyze CPU with lscpu, monitor memory with free, check storage with df and du. Identify resource bottlenecks, find largest files, and optimize disk space usage for production systems.

Module 6: Comparing Files & Directories

Use diff command for file comparison. Compare directories, ignore whitespace and case, use unified and side-by-side formats. Essential for configuration management and version control.

Module 7: Environment Variables & Shell Configuration

Create shell variables, work with environment variables, master the PATH variable. Customize .bashrc and .profile files. Write executable shell scripts for automation.

Module 8: AWS Cloud Fundamentals

Launch Ubuntu 20.04 EC2 instances, create SSH key pairs, configure security groups, understand AWS pricing and free tier. Manage cloud infrastructure through AWS console and CloudShell.

Module 9: SSH & Remote Server Management

Configure SSH daemon (sshd), set up passwordless authentication with SSH keys, execute commands remotely, use parallel-ssh (pssh) to manage hundreds of servers simultaneously. Master remote server administration workflows.

Module 10: Linux Networking Essentials

Understand IP addresses (public, private, localhost), port numbers, and DNS. Configure AWS security groups. Deploy web servers (Apache) and databases (MongoDB). Troubleshoot networking issues in production.

Module 11: Secure File Transfer Between Systems

Copy files with scp (secure copy), transfer directories recursively, use parallel-scp for multi-server distribution. Submit background jobs with nohup. Optimize large file transfers for production deployments.

Module 12: Production Troubleshooting & Log Analysis

Locate application logs, search with grep using advanced patterns, combine find and grep for comprehensive analysis. Filter by severity, extract context, count occurrences. Master production debugging techniques.

Module 13: Application & Service Management

Install packages with apt, manage services with systemctl and service commands. Start, stop, restart applications. Deploy Apache web server and MongoDB. Configure services for automatic startup.

Module 14: Process Management & Performance Tuning

Monitor load with uptime, analyze processes with ps, track open files with lsof, use top for real-time monitoring. Identify resource-intensive processes, troubleshoot port conflicts, kill problematic processes.