The following is a list of the typographical conventions used in this book.
- Italic
is used for file and directory names, program and command names, command-line options, email addresses and path names, URLs, and for emphasizing new terms.
- Boldface
is used to symbolize keystrokes (i.e., Ctrl-N).
-
Constant Width is used in examples to show the contents of code files or the output from commands, and to indicate environment variables and keywords that appear in code.
-
Constant Italic is used to indicate variable options, keywords, or text that the user is to replace with an actual value.
-
Constant Bold is used in examples to show commands or other text that should be typed literally by the user.
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