# Create the file for this example cat > example_data.csv << 'EOF' id,Created,Amount,Currency,Description,Customer 1,2024-11-01,100,USD,Payment,John Doe 2,2024-11-02,200,EUR,Refund,Jane Smith 3,2024-11-03,150,USD,Purchase,Emily Davis 4,2024-11-04,175,GBP,Subscription,Michael Brown EOF awk -F"," '{print $1}' example_data.csv