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datalad extract-metadata(1) General Commands Manual datalad extract-metadata(1)


datalad extract-metadata - run one or more of DataLad's metadata extractors on a dataset or file.


datalad extract-metadata [-h] --type NAME [-d DATASET] [FILE [FILE ...]]


The result(s) are structured like the metadata DataLad would extract during metadata aggregation. There is one result per dataset/file.


Extract metadata with two extractors from a dataset in the current directory and also from all its files::

$ datalad extract-metadata -d . --type frictionless_datapackage --type datalad_core

Extract XMP metadata from a single PDF that is not part of any dataset::

$ datalad extract-metadata --type xmp Downloads/freshfromtheweb.pdf


Path of a file to extract metadata from. Constraints: value must be a string

-h, -\-help, -\-help-np
show this help message. --help-np forcefully disables the use of a pager for displaying the help message
-\-type NAME
Name of a metadata extractor to be executed. This option can be given more than once.
-d DATASET, -\-dataset DATASET
"Dataset to extract metadata from. If no FILE is given, metadata is extracted from all files of the dataset. Constraints: Value must be a Dataset or a valid identifier of a Dataset (e.g. a path)


datalad is developed by The DataLad Team and Contributors <>.
2020-04-24 datalad extract-metadata 0.12.6