/CONCATENATE (default) /NOCONCATENATE Creates one output file from multiple input files when you do not use the asterisk (*) or percent sign (%) wildcard characters in the output file specification. The /NOCONCATENATE qualifier generates multiple output files. A wildcard character in an input file specification results in a single output file consisting of the concatenation of all input files matching the file specification. Files from Files-11 On-Disk Structure Level 2 and 5 disks are concatenated in alphanumeric order. If you specify an asterisk (*) or percent sign (%) wildcard character in the file version field, files are copied in descending order by version number. Files from Files-11 On-Disk Structure Level 1 disks are concatenated in random order.