The following typographical conventions are used in this book:
Italic
Used for commands, object IDs, URLs, filenames, and directory names.
It is also used for emphasis and for the first use of technical
terms.
Constant width
Used for examples, object definitions, literal values, and datatypes.
It is also used to show source code, the contents of files, and the
output of commands.
Constant width bold
Used in interactive examples to show commands or text that would be
typed literally by the user. It is also used to emphasize when
something, usually in source code or file-contents examples, has been
added to or changed from a previous example.
Constant width italic
Used for replaceable parameter names in command syntax.
