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       dtaus - Converter for DTAUS files


       The  dtaus(1) program reads and writes German DTAUS files.  DTAUS is an
       semi-acronym for DatenTrägerAUStausch.  It is  used  by  German  credit
       institutes  in  order to implement money exchanges between accounts and
       credit institutes.  These files are always called DTAUS0.TXT.

       Since they are shipped in a  weird  ascii  format  that  is  not  quite
       readable  and  writable  for  human beings a special control format was
       invented.  The dtaus(1) program reads and writes such  a  control  file
       and generates a proper DTAUS file if requested or decodes one.


       The  control  file  implements  a very simple format which was invented
       only  for  use  with  the  dtaus(1)  program.   Like  with  many   *nix
       configuration  files  empty  lines and those beginning with a hash mark
       (‘‘#’’) are ignored.  The remaining file is splitted into  three  major
       parts:  one  BEGIN  record (representing the A record), several regular
       records  (representing  C  records)  and  one   optional   END   record
       (representing  the E record), which is ignored when the control file is
       read but is extracted from the bank file if one is decoded.

       Here’s a short sample for a control file:

         BEGIN {
           Art   type
           Name  Martin Schulze
           Konto 123545
           BLZ   2004002
           Ausfuehrung 23.12.2001

           Transaktion transaction
           Name   Martha Schulze
           Konto  98832
           BLZ    2004003
           Betrag 20.00
           Zweck  Gebühr Wohnheimnetz
           Text   Anschluß u. 11+12.97


       Please note that several field names are used in both the BEGIN and the
       regular  record.   When  used in the BEGIN record they denote your name
       and your bank  account.   When  used  in  a  regular  record  they  are
       affiliated with your customers data.

       You  may  use  up to 15 fields entitled as Text.  They will be recorded
       one by one and stored into  additional  data  records  using  the  same
       order.   This  way  you could add a detailed description of the type of
       money transfer if you like.  The contents of the field Zweck  are  most
       probably what the customer will see on their bank statements.

       The  field  Ausfuehrung is optional and denotes the day when the entire
       transaction  should  be  processed.   The  date  has  to  be  given  as
       DD.MM.YYYY  and  will  be  translated  into  the  resulting  bank  file
       literally.  It may not be younger than the creation date  of  the  file
       which  will automatically be inserted by dtaus(1).  The processing date
       also may not be more than 15 years later than the creation date.

   Explanation of type
       One of the following:

       LK     Lastschrift Kundenseitig

       GK     Gutschrift Kundenseitig

       LB     Lastschrift Bankseitig

       GB     Gutschrift Bankseitig

   Explanation of transaction
       One of the following:

       Einzug Bankeinzug


       Vermgen [JJJJ]
              Vermögenswirksame Leistung mit Sparzulage.   Als  Argument  kann
              das Jahr angegeben werden, für das diese Leistung gilt.  Wenn es
              weggelassen, wird, verwendet dtaus das aktuelle Jahr.  Vom  Jahr
              wird  nur  die  letzte Ziffer verwendet, es muß daher auch nicht
              vollständig angegeben werden.

       Vermoegen [JJJJ]
              Wie Vermgen, jedoch ohne Umlaut.

       E-Cash Lastschrift aus Verfügung im elecctronic Cash-System

              Lastschrift  aus  Verfügung  im  elecctronic   Cash-System   mit
              ausländischer Karte.

       You may only use one of these for the entire file.  You are not allowed
       to switch between Einzug and Gutschrift within the same file.   If  you
       require  the  credit  institute  to  process both types, you’ll have to
       provide two separate diskettes.

   Support for Euro
       From January 1st 2002 the currency in many European countries,  Germany
       is among these, changes to Euro.  Hence, money transfer changes from DM
       (formerly  known  as  ‘‘Deutsche   Mark’’)   to   Euro.    The   format
       specification  of  DTAUS  was  meant for DM but was modified in 2001 to
       support Euro as well.  The current version of  dtaus(1)  supports  both
       currencies.   It  defaults  to  using  Euro, however.  To switch to DM,
       simply add the keyword DM (or Euro respectively  if  this  version  was
       compiled  without  Euro support as default) to the BEGIN record.  If no
       currency keyword is given, the compiled  in  decides  (upstream  source
       defaults to Euro).

   Character Encoding
       German  Umlauts  are  converted into two 7-bit characters on the fly so
       you don’t need to care about them.  Since the DTAUS0.TXT file only uses
       uppercase letters every text is also converted to uppercase.

       Except  for  the  way  records  are delimited the format should be self



       DTAUS files use a special but simple and publically documented  format.
       It is included in the distribution of dtaus(1) as dtaus.txt.

                               17 November 2001