DITTO command -- Verify DITTO devices
Compares the file contents of the DITTO input and output devices.
- NFILES(--)
- Number of files. The number of files to compare between the input and output DITTO devices. The default is to terminate when an end of volume is detected.
- NRECS(--)
- Number of records. The number of records to compare within a single file of the input and output DITTO devices. The default is to terminate when an end of file is detected.
The user has requested to verify the first ten records from the current position of the input and output devices.
The number of records (or files) are compared on the input and output devices. The comparison begins at the current position of each device. If a difference is found, the physical record number and byte offset within the record are output in an error message.