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       dds2index - tool to create an indexfile for the use of


       dds2index [options]


       dds2index creates an index file that is required by the file extraction
       utility dds2tar(1).  It works  on  tar  archives  stored  on  dds  tape
       devices  (DAT).   Since the file structure of the tape archives is used
       to extract the files, the archive must be an uncompressed tar  archive.
       But  compression by the transparent signal processor of the tape device
       is allowed.

       The index created by dds2index is written  to  stdout  by  default  and
       should  normally  be  stored on hard disk as indexfile for later use by

       The default tape device  to  read  from  is  /dev/nst0,  which  may  be
       overridden  with  the  environment  variable TAPE, which in turn may be
       overridden with the -f device option. The device must be  a  SCSI  tape


       -f devicefile
              device of the tape archive. Must be a character special file.

       -t indexfile
              write the index to indexfile, not to stdout.

              write the index in (gzip) compressed mode.

       --help print  some screens of online help with examples through a pager
              and exit immediatley.

OPTIONS you didnt really need
       -b, --block-size
              Set the maximal blocksize, dds2index can handle.

       --z, --no-compress
              Don’t filter the archive file through gzip.

              verbose mode. Print to stderr what is going on.

              Print a hash sign ’#’ to stderr for  each  MB  read  from

              Print  the version number of dds2index to stderr and exit


       Example of getting the index from the default tape /dev/nst0 and
       storing it in file archive.idx:

              dds2index -v -t archive.idx


       This  program  can  only  read records (tar is calling them tape
       blocks) up to 32 kbytes. A bigger  buffer  will  cause  problems
       with the Linux device driver.


       The  environment variable TAPE overrides the default tape device


       /dev/nst0     default tape device  file.  Must  be  a  character
                     special file.


       dds2tar(1), mt(1), mt-dds(1), tar(1), gzip(1)


       This program was created as a tool for dds2tar(1).


       J"org Weule (, Phone +49 211 751409.
       This      software      is      available      at       ftp.uni-

                                      2.4                         dds2index(1)