Font Conventions

This book uses the following typographical conventions:

Italic

For email addresses, filenames, URLs, for emphasizing new terms when first introduced, and for some comments within code sections.

Constant width

To show the contents of files or the output from commands and to designate modules, methods, statements, and commands.

Constant width bold

In code sections to show commands or text that would be typed.

Constant width italic

To mark replaceables in code sections.

This icon designates a note, which is an important aside to the nearby text.