Throughout this README, we provide commands for you to run in the terminal. These commands will look like this:
$ ssh -i PRIVATE_KEY.PEM ec2-user@EC2_PUBLIC_DNS_NAME
The command starts after $. Words that are UPPER_ITALIC_BOLD indicate a value that is unique to your environment. For example, the PRIVATE_KEY.PEM refers to the private key of an SSH key pair that you’ve created, and the EC2_PUBLIC_DNS_NAME is a value that is specific to an EC2 instance launched in your account.