Rasqal RDF Query Library - Rasqal RDF parser utility


NAME

roqet − Rasqal RDF parser utility

SYNOPSIS

roqet [OPTIONS] <query-URI> [base-URI]

EXAMPLE

roqet example.rdql
roqet -q x.rdql http://example.org/base/
roqet -i sparql http://example.org/query.sparql


DESCRIPTION

The roqet utility allows the querying of RDF content using the Rasqal RDF query library, emitting the results as variable bindings (at present). The query is read from query-URI and the optional base-URI is used as the base URI if present.

OPTIONS

roqet uses the usual GNU command line syntax, with long options starting with two dashes (‘-’) if supported by the getopt_long function. Otherwise the short options are only available.

−h, −−help

Show a summary of the options.

−i, −−input LANGUAGE

Set the input query LANGUAGE to one of ’rdql’ (RDF Data Query Language, default) and ’sparql’ (SPARQL Query Language for RDF). The list of supported languages is given in the help summary given by −h.

−o, −−output FORMAT

Set the query result output FORMAT to ’simple’ (default) or ’xml’ (an experimental XML format)

−c, −−count

Only count the triples and produce no other output.

−d, −−dump-query

Print a debugging dump of the constructed query.

−q, −−quiet

No extra information messages.

−s, −−source URI

Query against RDF data at source URI by adding it to the list of query data source URIs. FORMAT to ’simple’ (default) or ’xml’ (an experimental XML format)

−v, −−version

Print the rasqal library version and exit.

CONFORMING TO

RDQL RDF Data Query Language, HP Labs, http://www.w3.org/Submission/2004/SUBM-RDQL-20040109/
SPARQL Query Language for RDF
, Edited by Eric Prud’hommeaux and Andy Seaborne, W3C Working Draft, 12 October 2004. Work in progress. http://www.w3.org/TR/2004/WD-rdf-sparql-query-20041012/

SEE ALSO

librasqal(3),rasqal-config(1)

CHANGES

AUTHOR

Dave Beckett
Institute for Learning and Research Technology (ILRT)
University of Bristol


Copyright 2002-2004 Dave Beckett, Institute for Learning and Research Technology, University of Bristol