Github and SSH

Why Version Control Matters Content

• Facilitates collaboration in software development.
• Tracks and manages changes to code.
• Allows you to revert to previous versions.
• Ensures code integrity and history.

What is Git?

• Git is a distributed version control system.
• It helps track changes to files.
• Key features:

• Branching and merging.
• Lightweight and fast.
• Distributed repository.

• Commonly used for software projects.

Installing Git

1.Download Git: https://git-scm.com.
2.Install Git on your system:

•For Windows: Run the installer.
•For macOS: Use Homebrew (brew install git).

•For Linux: Use package manager (sudo apt install git).

3.Verify installation: git --version.

Setting Up Git

1. Set your username: git config --global user.name "Your Name".

2. Set your email: git config --global user.email "your.email@example.com".

3. Check the configuration: git config --list.

What is GitHub?

• GitHub is a platform for hosting Git repositories.
• Enables collaboration with others.
• Provides tools for code review, issue tracking, and CI/CD.
• Public and private repositories.

Creating a GitHub Account

• Visit https://github.com.
• Sign up with your email address.
• Confirm your email and log in.
• Explore the dashboard.

Generating an SSH Key

1.Open terminal (or Git Bash for Windows).
2.Generate an SSH key:

ssh-keygen -t ed25519 -C "your.email@example.com"

3.Follow prompts to save the key (default location is recommended).
4.Start the SSH agent:

eval "$(ssh-agent -s)"

5.Add the SSH key:

ssh-add ~/.ssh/id_ed25519

Adding SSH Key to GitHub

1.Copy your public SSH key:

cat ~/.ssh/id_ed25519.pub

2.Log in to GitHub and navigate to Settings > SSH and GPG keys.
3.Click New SSH key.
4.Paste the key and give it a title.
5.Save the key.

Cloning a Repository with SSH

1.Find the repository URL on GitHub (choose SSH option).
2.Clone the repository:

git clone git@github.com:username/repository.git

3.Start collaborating securely.

Summary

• Git enables efficient version control and collaboration.
• GitHub provides a platform for hosting and teamwork.
• SSH keys secure your GitHub interactions.
• Set up Git, GitHub, and SSH to streamline your workflow.

Additional resources:

• Git documentation: https://git-scm.com/doc.
• GitHub docs: https://docs.github.com.