Master Linux System Administration
Comprehensive tutorials covering Linux fundamentals, system administration, shell scripting, security, and modern DevOps practices. From beginner to expert level.
Learning Paths
Structured learning paths to take you from beginner to expert
Linux Fundamentals
Start with essential Linux concepts, commands, and file system navigation. Perfect for beginners.
- Introduction to Linux
- Linux Architecture & Kernel
- File System Hierarchy
- Basic Commands & Navigation
- Users, Groups & Permissions
System Administration
Learn professional system administration skills for managing Linux servers and workstations.
- Process Management
- Service Management (systemd)
- Log Management & Monitoring
- Disk Management & Filesystems
- Network Configuration
Shell Scripting
Master bash scripting and automation to streamline your Linux workflows and tasks.
- Bash Scripting Fundamentals
- Advanced Shell Programming
- Regular Expressions & Text Processing
- Automation Scripts
- Debugging Shell Scripts
Security & Hardening
Secure your Linux systems with comprehensive security practices and hardening techniques.
- Linux Security Fundamentals
- Firewall Configuration (iptables/ufw)
- SSH Configuration & Keys
- System Hardening Best Practices
DevOps & Modern Linux
Integrate Linux skills with modern DevOps practices, containers, and cloud technologies.
- Container Technologies (Docker)
- Configuration Management
- CI/CD Pipeline Integration
- Cloud Linux Environments
Essential Linux Commands
Master these fundamental commands to navigate and manage Linux systems
📁
File Operations
ls -la
List files with details
cp -r source dest
Copy directories recursively
find / -name "*.log"
Find all log files
chmod 755 script.sh
Set file permissions
⚙️
Process Management
ps aux
List all running processes
top
Real-time process monitor
kill -9 PID
Force kill a process
nohup command &
Run command in background
📊
System Information
df -h
Disk space usage
free -m
Memory usage
uname -a
System information
lscpu
CPU information
$ whoami pranav $ pwd /home/pranav $ ls -la total 24 drwxr-xr-x 6 pranav pranav 4096 Dec 20 10:30 . drwxr-xr-x 3 root root 4096 Dec 20 09:15 .. -rw-r--r-- 1 pranav pranav 220 Dec 20 09:15 .bash_logout -rw-r--r-- 1 pranav pranav 3771 Dec 20 09:15 .bashrc drwxr-xr-x 2 pranav pranav 4096 Dec 20 10:30 Documents drwxr-xr-x 2 pranav pranav 4096 Dec 20 10:30 scripts $ cd scripts && ls backup.sh monitor.sh setup.sh $ cat backup.sh #!/bin/bash # Automated backup script BACKUP_DIR="/backup/$(date +%Y%m%d)" mkdir -p $BACKUP_DIR tar -czf $BACKUP_DIR/home_backup.tar.gz /home/pranav echo "Backup completed: $BACKUP_DIR/home_backup.tar.gz"
Popular Linux Distributions
Choose the right distribution for your needs and expertise level
Ubuntu
User-friendly and widely supported. Perfect for beginners and desktop users.
CentOS / RHEL
Enterprise-focused with long-term stability. Ideal for servers and production environments.
Debian
Rock-solid stability and security. The foundation for many other distributions including Ubuntu.
Arch Linux
Rolling release model with cutting-edge packages. For advanced users who want control.
Alpine Linux
Lightweight and security-focused. Popular for containers and embedded systems.
Amazon Linux
Optimized for AWS cloud environments. Tight integration with AWS services.
Why Learn Linux?
Discover the benefits of mastering Linux system administration
Server Dominance
Linux powers 96.3% of the world's top web servers and cloud infrastructure.
Career Opportunities
High-demand skills with excellent salary prospects in DevOps, SysAdmin, and Cloud roles.
Powerful Tools
Command-line mastery provides unmatched power and efficiency for automation and development.
Open Source
Free to use, modify, and distribute. Learn from the source code and contribute to projects.
Security & Stability
Built-in security features and proven stability in mission-critical environments.
Cloud Native
Essential for modern cloud platforms, containers, and microservices architectures.