How to get RDF data returned by remote HTTP IRI through linux curl (e.g. DBpedia, GENEPIO ...)?

Question

I know that the following remote HTTP IRI can be parsed directly with 'curl http://xxx' because they return RDF data directly:

• https://www.w3.org/1999/02/22-rdf-syntax-ns#
• http://www.w3.org/2000/01/rdf-schema#
• http://www.w3.org/2002/07/owl#
• ...

But I don't know how the following remote HTTP IRI can be parsed directly, because they don't return RDF data directly:

• http://dbpedia.org/resource/Resource_Description_Framework
• http://purl.obolibrary.org/obo/GENEPIO_0100155
• http://purl.obolibrary.org/obo/NCBITaxon_2697049
• ...

How to get RDF data returned by remote HTTP IRI through linux curl (e.g. DBpedia, GENEPIO ...) ?

Best regards

Answer 1

You have to set the Accept header to specify which MIME types you accept/prefer:

curl -L -H "Accept: text/turtle; q=1.0, application/rdf+xml; q=0.5" http://dbpedia.org/resource/Resource_Description_Framework

In this case, you would prefer Turtle (relative quality factor of 1.0) over RDF/XML (0.5).

(The option -L lets curl follow redirects. For example, from http://dbpedia.org/resource/Resource_Description_Framework to http://dbpedia.org/data/Resource_Description_Framework.ttl.)