# Create a repository with a first commit git init -q cat > index.html << 'EOF' <!DOCTYPE html> <html> <head> <title>Hello World!</title> </head> <body> <h1>Hello world!</h1> <p>This is the first file in my new Git Repo.</p> </body> </html> EOF cat > README.md << 'EOF' # hello-world Hello World repository for the Git tutorial EOF cat > bluestyle.css << 'EOF' body { background-color: lightblue; } EOF git add --all git commit -q -m "First release of Hello World!" # Add a new line to index.html and commit it sed -i 's|</p>|</p>\n<p>A new line in our file!</p>|' index.html git commit -q -a -m "Updated index.html with a new line" git log --oneline