The name of one or more (using a globbing pattern) histories previously defined by the history command. When this parameter is not specified, the default is *, to include all histories.
The number of histories (n) that match the specified pattern, in this format:
(count pattern n)
This command queries the Cascade Historian for the total number of histories currently being kept that match the given pattern.
This command corresponds to the Cogent API function HI_Count and the hist_count dynamic library function.