# Set up a repository with one commit git init -q echo "<h1>Hello world!</h1>" > index.html git add index.html git commit -q -m "First commit" echo "function login(user) { return user.name !== ''; }" > auth.js git add auth.js git commit -q -m "Add user authentication logic" # Fix a bug and stage the fix echo "function login(user) { return user.name.trim() !== ''; }" > auth.js git add auth.js git commit -m "Fix bug in user login validation"