Using Serviceguard Extension for RAC, 5th Edition, June 2007

14
Command A command name or qualified command phrase.
Variable The name of a variable that you may replace in a
command or function or information in a display that
represents several possible values.
[] The contents are optional in formats and command
descriptions. If the contents are a list separated by |,
you must choose one of the items.
{} The contents are required in formats and command
descriptions. If the contents are a list separated by |,
you must choose one of the items.
... The preceding element may be repeated an arbitrary
number of times.
| Separates items in a list of choices.