Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "This patent shows a cognitive system capable of identifying and preventing scam attacks: https://patents.google.com/patent/US10944790B2/en?inventor=cesar+bravo.”

Any command-line input or output is written as follows:

$ sudo apt install set -y

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: "Then, to make this even more attractive, notice that the button says One-click transfer without password."

Tips or important notes

Appear like this.