Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Amazon EC2 key pair that is stored within AWS is appended to the initial operating system user’s ~/.ssh/authorized_keys file".

A block of code is as follows:

{
 "Version": "2012-10-17",
 "Statement": [
 {
 "Effect": "Allow",
 "Action": "ec2:Describe*",
 "Resource": "*"
 }
]
}

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Statistic chosen is Average and the period is 5 Minutes:"