dds2index - Online in the Cloud

PROGRAM:

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.

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