This lesson provides a crash course on Git, a fundamental version control system for developers, and Github, the home for your Git repositories.
This lesson equips you with basic Git commands frequently used by developers. Think of it as a cheat sheet, and we will build on it throughout the course. Here’s all commands mentioned in the video:
Checking Git Installation:
git --version - This command verifies if Git is already installed on your system and displays the version.Git User Setup:
git config --global user.name "John Doe" - Sets your Git username for global use.git config --global user.email "[email protected]" - Sets your Git email address for global use.Initializing a Git Repository:
git init -b main (in your project's root directory) - Initializes a new Git repository in your project directory and creates a new "main" branch.Adding and Committing Changes:
git add . - Adds all modified files in your project to the staging area.git commit -m "init" - Creates a commit with a descriptive message ("init" in this example).Connecting to a Remote Repository:
git remote add origin <URL> (replace <URL> with the repo’s SSH URL) - Adds the remote GitHub repository as "origin" for future operations.git push -u origin main - Pushes the initial commit ("init") to the remote "main" branch on GitHub.Subsequent Updates:
After making changes to your local repository, use these commands to keep your remote repository updated:
git add -A - Adds all modified files to the staging area.git commit -m "message" - Creates a commit with a descriptive message.git push origin main - Pushes your local commits to the remote "main" branch on GitHub.Generating SSH Key:
ls -al ~/.ssh - Checks if you have an existing SSH key on your machine.ssh-keygen -t ed25519 -C "[email protected]" - Generates an SSH key for secure communication with GitHub.pbcopy < filename (replace "filename" with your key's actual path and name) - Copies the generated SSH key to your clipboard.Generating SSH Key (Windows):