Introduction to Linux
Linux is a powerful open-source operating system widely used in servers, cloud environments, networking, and software development.
It provides stability, security, and flexibility, making it the backbone of many enterprise systems.
For beginners, learning Linux is essential to understand how servers, applications, and infrastructure run in real-world IT environments.
- Introduction to Linux
- Getting Started
- Essential Commands
- Working with Processes
- File System Management
- Shell Scripting Basics
- User and Group Management
- Networking Basics
- Package Management
1. Introduction to Linux
- What is Linux?
- Linux Distributions (Ubuntu, CentOS, Fedora, etc.)
- Kernel vs Operating System
2. Getting Started
- Installing Linux (VM, Dual Boot, or WSL)
- Linux Directory Structure
- Terminal & Shell Basics
3. Essential Commands
- File and Directory Operations (
ls,cd,mkdir,rm,cp,mv) - Viewing and Editing Files (
cat,less,nano,vi) - Permissions and Ownership (
chmod,chown)
4. Working with Processes
- Understanding Processes
- Process Management (
ps,top,kill,jobs,bg,fg)
5. File System Management
- Mounts and Partitions
- Disk Usage (
df,du) - Finding Files (
find,locate)
6. Shell Scripting Basics
- Writing Your First Script (
#!/bin/bash) - Variables and Constants
- Conditional Statements (
if,else,elif) - Loops (
for,while,until) - Functions in Shell Scripts
- Executing and Scheduling Scripts (using
cron)
7. User and Group Management
- Creating and Managing Users (
useradd,passwd) - Managing Groups (
groupadd,usermod) - Switching Users (
su,sudo) - File Ownership (
chown,groups)
8. Networking Basics
- Checking Network Configuration (
ifconfig,ip addr) - Testing Connectivity (
ping,traceroute) - Viewing Active Connections (
netstat,ss) - File Transfers (
scp,wget,curl) - Secure Shell Access (SSH basics)
9. Package Management
- APT (Debian/Ubuntu) →
apt-get,apt - YUM/DNF (RHEL/CentOS) →
yum,dnf - Updating and Removing Software
- Managing Repositories