yaz-marcdump
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## Name

yaz-marcdump — MARC record dump utility

## Synopsis

`yaz-marcdump` [`-i `format``] [`-o `format``] [`-f `from``] [`-t `to``] [`-l `spec``] [`-c `cfile``] [`-s `prefix``] [`-C `size``] [`-n`] [`-p`] [`-v`] [`-V`] [file...]

## DESCRIPTION

yaz-marcdump reads MARC records from one or more files. It parses each record and supports output in line-format, ISO2709, MARCXML, MARC-in-JSON, MarcXchange as well as Hex output.

This utility parses records ISO2709(raw MARC), line format, MARC-in-JSON format as well as XML if that is structured as MARCXML/MarcXchange.

MARC-in-JSON encoding/decoding is supported in YAZ 5.0.5 and later.

### Note

As of YAZ 2.1.18, OAI-MARC is no longer supported. OAI-MARC is deprecated. Use MARCXML instead.

By default, each record is written to standard output in a line format with newline for each field, $x for each subfield x. The output format may be changed with option `-o`,

yaz-marcdump can also be requested to perform character set conversion of each record.

## OPTIONS

-i `format`

  Specifies input format. Must be one of `marcxml`, `marc` (ISO2709), `marcxchange` (ISO25577), `line` (line mode MARC), `turbomarc` (Turbo MARC), or `json` (MARC-in-JSON).

-o `format`

  Specifies output format. Must be one of `marcxml`, `marc` (ISO2709), `marcxchange` (ISO25577), `line` (line mode MARC), `turbomarc` (Turbo MARC), or `json` (MARC-in-JSON).

-f `from`

  Specify the character set of the input MARC record. Should be used in conjunction with option `-t`. Refer to the yaz-iconv man page for supported character sets.

-t `to`

  Specify the character set of the output. Should be used in conjunction with option `-f`. Refer to the yaz-iconv man page for supported character sets.

-l `leaderspec`

  Specify a simple modification string for MARC leader. The `leaderspec` is a list of pos=value pairs, where pos is an integer offset (0 - 23) for leader. Value is either a quoted string or an integer (character value in decimal). Pairs are comma separated. For example, to set leader at offset 9 to a, use `9='a'`.

-s `prefix`

  Writes a chunk of records to a separate file with prefix given, i.e. splits a record batch into files with only at most "chunk" ISO2709 records per file. By default chunk is 1 (one record per file). See option `-C`.

-C `chunksize`

  Specifies chunk size; to be used conjunction with option `-s`.

-p

  Makes yaz-marcdump print record number and input file offset of each record read.

-n

  MARC output is omitted so that MARC input is only checked.

-v

  Writes more information about the parsing process. Useful if you have ill-formatted ISO2709 records as input.

-V

  Prints YAZ version.

## EXAMPLES

The following command converts MARC21/USMARC in MARC-8 encoding to MARC21/USMARC in UTF-8 encoding. Leader offset 9 is set to 'a'. Both input and output records are ISO2709 encoded.

        yaz-marcdump -f MARC-8 -t UTF-8 -o marc -l 9=97 marc21.raw >marc21.utf8.raw

The same records may be converted to MARCXML instead in UTF-8:

        yaz-marcdump -f MARC-8 -t UTF-8 -o marcxml marc21.raw >marcxml.xml

Turbo MARC is a compact XML notation with same semantics as MARCXML, but which allows for faster processing via XSLT. In order to generate Turbo MARC records encoded in UTF-8 from MARC21 (ISO), one could use:

        yaz-marcdump -f MARC8 -t UTF8 -o turbomarc -i marc marc21.raw >out.xml

## FILES

``prefix`/bin/yaz-marcdump`

``prefix`/include/yaz/marcdisp.h`

## SEE ALSO

yaz(7)

yaz-iconv(1)

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