The following conventions are used in this book:
Used for anything that might appear in a program, including keywords, function names, SQL commands, and variable names. This font is also used for code examples, output displayed by commands, and system configuration files.
Used for user input.
Indicates an element (e.g., a filename or variable) that you supply.
Used for directory names, filenames, program names, Unix commands, and URLs. This font is also used to introduce new terms and for emphasis.
NOTE
This is used to indicate a tip, suggestion, or general note.
WARNING
This is used to indicate a warning.
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