When commands are described in this manual, the following conventions are used:
Plain text - any text appearing in the normal text font refers to a literal value that must be used exactly as shown.
Italics - any text appearing in italics refers to a generic item. These are explained in the text that follows the command.
Brackets - any text appearing in brackets ( [ ] ) refers to an optional item. The text following the command describes the action taken if these optional items are used.
For example, in this command:
vutil -info [-x] [files]
the words "vutil" and "-info" must appear exactly as shown. The "-x" and "files" items are optional. If they are used, the "-x" must be typed literally while the "files" would be described in the text explaining the command.