bionic (1) dds2index.1.gz

NAME

       dds2index - tool to create an indexfile for the use of

SYNOPSIS

       dds2index [options]

DESCRIPTION

       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 dds2tar(1).

       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 device.

OPTIONS

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

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

       -z,--compress
              write the index in (gzip) compressed mode.

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

OPTIONS you didn't really need

       -b, --block-size
              Set the maximal blocksize, dds2index can handle.

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

       -v,--verbose
              verbose mode. Print to stderr what is going on.

       -h,--hash-mode
              Print a hash sign '#' to stderr for each MB read from tape.

       -V,--version
              Print the version number of dds2index to stderr and exit immediately.

EXAMPLES

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

              dds2index -v -t archive.idx

WARNING

       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.

ENVIRONMENT

       The environment variable TAPE overrides the default tape device /dev/nst0.

FILES

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

SEE ALSO

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

HISTORY

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

AUTHOR

       J"org  Weule (weule@cs.uni-duesseldorf.de), Phone +49 211 751409.  This software is available at ftp.uni-
       duesseldorf.de:/pub/unix/apollo

                                                       2.4                                          dds2index(1)