Certain NCL commands, such as show, can include one or more
    attribute specifiers.

    You can specify one or several attribute groups, separated by
    commas, in a show command. If you specify all, this is equivalent
    to specifying all the attribute groups that are legal for a
    command.  The common attribute group names are:

    o  all [attributes]

    o  all characteristics

    o  all counters

    o  all identifiers  (the default if no attribute group
       is specified)

    o  all status

    See the individual show command descriptions to see which
    attribute groups are legal for each command.