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ibm:vm370-lib:cmshelp:tappds.helpcmd

TAPPDS

CMS Commands

tappds.helpcmd.txt
TAPPDS                                                    CMS Transient command

Use the TAPPDS command to create CMS disk files from tapes that are used as
input to or output from the following OS utility programs:
o  IEBPTPCH:  tape files must be the result of an IEBPTPCH punch operation
   from either a sequential or partitioned data set in OS.  The default
   attributes (IEBPTPCH DCB) must have been issued:
      DCB=(RECFM=FA,LRECL=81,BLKSIZE=81)
o  IEBUPDTE:  tape files may be blocked or unblocked and must be in the format
   accepted by IEBUPDTE as "control data set" (SYSIN) input with a control
   statement
      ./ ADD...
   preceding the records to be placed in each partitioned data set member (OS)
   or separate CMS file (CMS)).
o  IEHMOVE:  unloaded partitioned data sets are read.
The tape can contain OS standard labels or be unlabeled.  The format of the
TAPPDS command is:
+----------+------------------------------------------------------------------+
| TAPPDS   | [fn|* [ft|* [A1|fm|*]]] [(options...[)]]                         |
|          | options:                                                         |
|          |   [PDS|NOPDS|UPDATE]   [NOCOL1|COL1]        [TAP1|TAPn]          |
|          |   [NOEND|END]          [NOMAXTEN|MAXTEN]                         |
+----------+------------------------------------------------------------------+
where:

fn       is the filename of the disk file to be created from the sequential
         tape file.  If the tape contains members of a partitioned data set
         (PDS), fn must be specified as an asterisk (*); one file is created
         for each member with a filename the same as the member name.  If NOPDS
         or UPDATE is specified and you do not specify fn or specify it as an
         asterisk (*), the default filename is TAPPDS.

ft       is the filetype of the newly created files.  The default filetypes are
         CMSUT1 (for PDS or NOPDS) and ASSEMBLE (for UPDATE).  The defaults are
         used if ft is omitted or specified as *.

fm       is the mode of the disk to contain the new files.  If this field is
         omitted or specified as an asterisk (*), A1 is assumed.

Options:

If conflicting options are specified, the last one entered is the one that is
used.  All options, except TAPn, are ignored when unloaded (IEHMOVE) PDS tapes
are read.

PDS      indicates that the tape contains members of an OS partitioned data
         set, each preceded by a MEMBER NAME=name statement.  The tape must
         have been created by the OS IEBPTPCH service program if this option is
         specified.

NOPDS    indicates that the contents of the tape will be placed in one CMS
         file.

UPDATE   indicates that the tape file is in IEBUPDTE control file format.  The
         filename of each file is taken from the NAME= parameter in the
         "./ ADD" record that precedes each member.  (See Usage Note 2.)

COL1     reads data from columns 1-80.  You should specify this option when you
         use the UPDATE option.

NOCOL1   reads data from columns 2-81; column 1 contains control character
         information.  This is the format produced by the OS IEBPTPCH service
         program.

TAPn     specifies the symbolic name of the tape, where n is 0 to F,
         corresponding to devices 180-187 and 288-28F.  The default is TAP1.

END      considers an END statement (characters 'END ' in columns 2-5) a
         delimiter for the current member.

NOEND    specifies that END statements are not to be treated as member
         delimiters, but are to be processed as text.  This is the default.

MAXTEN   reads up to ten members.  This is valid only if the PDS option is
         selected.

NOMAXTEN reads any number of members.


Usage notes:

1.  You can use the TAPE command to position a tape at a particular tape file
    before reading it with the TAPPDS command.  If the tape has OS standard
    labels, TAPDDS will read and display the "VOL1" and "HDR" records at the
    terminal.  If the file you want to process is not at the beginning of the
    tape, the TAPE command must be used to position the tape at a particular
    tape file before reading it with the TAPPDS command.  Be aware that each
    file on an OS standard label tape is actually three physical files (HDR,
    DATA, TRAILER).  If positioning to other than the first file, you must skip
    more physical tape files (3n-3 if positioning to the header labels, 3n-2 if
    positioning to the data file, where n is the number of the file on the
    tape).

2.  If you use the UPDATE option, you must also specify the COL1 option.  Each
    tape record is scanned for a "./ ADD" record beginning in column 1.  When a
    "./ ADD" record is found, subsequent records are read onto disk until the
    next "./ ADD" record is encountered or until a "./ ENDUP" record is
    encountered.

    A "./ ENDUP" record or a tape mark ends the TAPPDS command execution; the
    tape is not repositioned.

    "./ label" records are not recognized by CMS and are included in the file
    as data records.

    If the NAME= parameter is missing on the "./ ADD" record or if it is
    followed by a blank, TAPPDS uses the default filename, TAPPDS, for the CMS
    disk file.  If this happens more than once during the execution of the
    command, only the last unnamed member is contained in the TAPPDS file.

3.  If you are reading a macro library from a tape created by the IEHMOVE
    utility, you can create a CMS MACLIB file directly by using the TAPEMAC
    command.

Responses:

DMSTPD703I    FILE 'fn ft [fm]' COPIED
   The named file is copied to disk.

DMSTPD707I    TEN FILES COPIED
   The MAXTEN option was specified and ten members have been copied.

Note:  If the tape being read contains standard OS labels, the labels are
displayed at the terminal.
ibm/vm370-lib/cmshelp/tappds.helpcmd.txt ยท Last modified: 2023/08/06 13:36 by Site Administrator