| The following conventions are used in this book: - Italic
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Used for file, directory, user, and group names. It is also used for URLs and to emphasize new terms and concepts when they are introduced. - Constant Width
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Used for code examples, system output, parameters, directives, and attributes. - Constant Width Italic
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Used in examples for variable input or output (e.g., a filename). Constant Width Bold -
Used in code examples for user input and for emphasis. | This icon designates a note, which is an important aside to the nearby text. |
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| This icon designates a warning relating to the nearby text. |
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