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unzip-6.0/cmsmvs/README.MVS  view on Meta::CPAN

                //UNZIP   EXEC PGM=UNZIP,
                // PARM='/-a -o ''userid.zip'' -d ''hlq.test'' *'
                //STEPLIB  DD  DSN=USERID.UNZIP.LOAD,DISP=SHR
                //SYSPRINT DD  SYSOUT=*
                //SYSOUT   DD  SYSOUT=*

          The above JCL converts from ASCII to EBCDIC (-a), always
          overwrites existing members (-o), extracts from 'userid.zip',
          writes to files starting with 'hlq.test', all members (*).
          Note the double quotes because PARM= requires single quotes.

     3.8. The rules for output DCBs are a little messy.  If the output
          file already exists (remember the -d option) then unzip uses
          the existing DCB and space values.

          If the output file does not exist and the input zip came from
          MVS then unzip makes its best attempt at preserving the
          original DCB.  However there is not enough information stored
          in the zip file to do this correctly for all file types, some
          file types may be corrupted.