Specifies that a summary report is to be produced containing
    information about the file's structure and use. The /SUMMARY
    qualifier generates a summary report containing information about
    the file's structure and use.

    If the file has no errors, the output generated from the /SUMMARY
    qualifier is identical to that produced by the /CHECK qualifier.
    Unlike the /CHECK qualifier, however, the /SUMMARY qualifier does
    not check the structure of your file, so output is generated more
    quickly.

    Do not use this qualifier with the /CHECK qualifier, the /FDL
    qualifier, the /INTERACTIVE qualifier, the /STATISTICS qualifier,
    or the /UPDATE_HEADER qualifier.  If /SUMMARY is used with any
    other qualifiers, /FDL takes precedence, next is /INTERACTIVE,
    and then /STATISTICS.