The following is a list of the typographical conventions used in this book:
Used to indicate new terms, URLs, filenames, file extensions, directories, commands and options, and program names.
Used to show code examples, the contents of files, or the output from commands.
Constant Width Bold
Used in examples and tables to show commands or other text that should be typed literally.
Constant Width Italic
Used in examples and tables to show text that should be replaced with user-supplied values.
The thermometer icons, found next to each hack, indicate the relative complexity of the hack: