$ pm_1203774_file_io_basics.pl 26 24 25
'pm_1203774_transient_data' not found.
'pm_1203774_transient_data' exists.
Record 24: X
Record 25: Y
Record 26: Z
No. of records: 26
'pm_1203774_transient_data' exists.
'pm_1203774_transient_data' not found.