vi Introduction
Text
There are two conventions used in the text of this book.
Specific text that you are to type is printed in bold. For example, if the book says to type win, you
type the letters win.
Placeholders for text you must provide, such as file names, are printed in italic. For example, if
you are directed to type filename, you should type the actual name of a file instead of the word
shown in italic type.