Git

Git is the most popular version control system. It tracks changes to your code, lets you collaborate with others, and is essential for modern development.

Git Basics

Check Status

git status

Shows which files have changed.

Stage Changes

git add filename.txt

Stage a specific file.

git add .

Stage all changed files.

Commit Changes

git commit -m "Add login feature"

Save staged changes with a message.

View History

git log --oneline

Shows commit history in a compact format.

Set Up SSH Keys for GitHub

SSH keys let you push/pull from GitHub without entering your password every time.

1. Generate an SSH key:
   Ubuntu Copy

   ssh-keygen -t ed25519 -C "[email protected]"

   Press Enter to accept the default location. You can add a passphrase or leave it empty.

2. Start the SSH agent:
   Ubuntu Copy

   eval "$(ssh-agent -s)"

3. Add your key to the agent:
   Ubuntu Copy

   ssh-add ~/.ssh/id_ed25519

4. Copy your public key:
   Ubuntu Copy

   cat ~/.ssh/id_ed25519.pub

   Copy the entire output (starts with ssh-ed25519).

5. Add to GitHub:
   • Go to GitHub SSH Keys
   • Click "New SSH key"
   • Give it a title (e.g., "WSL Ubuntu")
   • Paste your public key
   • Click "Add SSH key"
6. Test the connection:
   Ubuntu Copy

   ssh -T [email protected]

   You should see "Hi username! You've successfully authenticated..."

Clone a Repository

To download a repository from GitHub:

git clone [email protected]:username/repo.git

This creates a folder with the repository contents.

LazyGit - Visual Git Interface

LazyGit is a terminal UI for Git that makes complex operations visual and intuitive. The bootstrap script installed it for you.

lazygit

Run this inside any Git repository to open the interface.

LazyGit Panels

Common LazyGit Keys