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| Convention | Specifying |
|---|---|
| Bold | Window items |
| Italics | Book and CD titles Variable names New terms |
| Fixed Font | File and directory names Commands and code examples Text typed by you |
| Straight brackets, as in [value] | Optional command parameters |
| Curly braces, as in {value} | Required command parameters |
| Logical OR, as in value 1 | value 2 | Exclusively command parameters where only one of the options can be specified |