These type conventions and symbols are used in this guide:
Function names, literal command-line arguments (options/flags)
Name of a file or directory
Commands and text that you are to type literally in response to shell and command prompts
New terms
Manual or book title
Command-line arguments, filenames, and variables to be supplied by the user in examples, code, and syntax statements
Code examples, error messages, prompts, and screen text
System shell prompt for the superuser (root)