indexdump [options] file [ tag ]
where options are
--debug output record separator (default newline)
--type specifies the num/date/char type of the index
--start defines the value to start dump from
--n prints also the total number of records
in the file
indexdump rooms.cdx FACILITY
indexdump --debug=14 --start=Dub rooms.cdx ROOMNAME
The output contains the index key and the value, which is the record number in the correcponding dbf file.
For mulitag index files (like cdx), you need to specify the tag name to get the actual data.