datalad extract-metadata


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


Run one or more of DataLad's metadata extractors on a dataset or 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 or value must be NONE

-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) or value must be NONE


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datalad is developed by The DataLad Team and Contributors <>.