https://drive.google.com/file/d/1xfT6raH1ryvW_56W2L5FI-180_hUfyCs/view?usp=sharing

1. Introduction to Git

What is Git?

• Distributed Version Control System (DVCS): Tracks changes to files over time
• Created by Linus Torvalds in 2005 for Linux kernel development
• Key Features:
  • Distributed (every developer has full repository history)
  • Fast and efficient
  • Supports non-linear development (branches, merges)
  • Data integrity (cryptographic hashing)

Git vs GitHub vs GitLab

2. Git Installation and Configuration

Install Git

# RHEL/CentOS/Fedora
sudo dnf install git -y

# Ubuntu/Debian
sudo apt install git -y

# Verify installation
git --version

Configure Git Identity

# Set global identity (required)
git config --global user.name "Your Name"
git config --global user.email "your.email@example.com"

# Set default editor
git config --global core.editor "vim"

# Set default branch name
git config --global init.defaultBranch main

# View all configurations
git config --list

Configuration Files

• System: /etc/gitconfig (all users)
• Global: ~/.gitconfig (current user)
• Local: .git/config (current repository)