How to get the number of members in a PDS without opening it?

How to get the number of members in a PDS without opening it?

How to get the number of members in a PDS without opening it?

I was asked this question in an interview, How to count the number of members in a PDS,

I did not have a clue, but I said, it can be viewed by using information, i.e. by issuing line command “I” against the dataset name.

I was not sure if the answer was correct. But later I realized that it works.

See below the info screen, showing number of memebrs

Data Set Name . . . . : USERIDA.XXXXXXXX.YYYYYYY                        General Data                          Current Allocation                 Management class . . : XXXXXXX        Allocated cylinders : 23          Storage class  . . . : XXXXXXX        Allocated extents . : 5            Volume serial . . . : XXXXXXX        Maximum dir. blocks : 30           Device type . . . . : XXXX                                             Data class . . . . . : DEFAULT                                           Organization  . . . : PO            Current Utilization                 Record format . . . : FB             Used cylinders  . . : 23           Record length . . . : 80             Used extents  . . . : 5            Block size  . . . . : 9040           Used dir. blocks  . : 16           1st extent cylinders: 14             Number of members . : 96           Creation date . . . : 2007/04/02     Referenced date . . : 2011/06/18   Expiration date . . : ***None***                                      “; ; ; ;