1roqet(1) General Commands Manual roqet(1)
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6 roqet - Rasqal RDF query utility
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9 roqet [OPTIONS] <query-URI> [base-URI]
10 roqet [OPTIONS]--exec query-string [base-URI]
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13 roqet example.rdql
14 roqet -q -i rdql x.rdql http://example.org/base/
15 roqet -i sparql -r xml http://example.org/query.rq
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18 The roqet utility allows querying of RDF content using the Rasqal RDF
19 query library, printing the results in variable bindings, RDF graph or
20 boolean format. The query is read from query-URI and the optional
21 base-URI is used as the base URI of the query if present.
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24 roqet uses the usual GNU command line syntax, with long options start‐
25 ing with two dashes (`-') if supported by the getopt_long function.
26 Otherwise only the short options are available.
27 -h, --help
29 Show a summary of the options. -i, --input LANGUAGE Set the
30 input query LANGUAGE to one of'sparql' (SPARQL Query Language
31 for RDF, default) or 'rdql' (RDF Data Query Language). The
32 list of supported languages is given in the help summary given
33 by -h.
34 -r, --results FORMAT
36 Set the query results format.
37 For variable bindings, the values of FORMAT vary upon what
39 Rasqal supports but include 'simple' for a simple text format
40 (default), 'xml' for the SPARQL Query Results XML format, 'xml-
41 v2' for the version of the 2005-05-27 working draft, and 'json'
42 for a JSON version of the results. The older xml formats may be
43 removed in future releases.
44 For RDF graph results, the values of FORMAT are 'ntriples' (N-
46 Triples, default), 'rdfxml-abbrev' (RDF/XML Abbreviated),
47 'rdfxml' (RDF/XML), or 'rss-1.0' (RSS 1.0, also an RDF/XML syn‐
48 tax).
49 The exact list of formats depends on what libraptor(3) was built
51 with but is given correct in the usage message with -h.
52 -c, --count
54 Only count the triples and produce no other output.
55 -d, --dump-query FORMAT
57 Print the parsed query out in a given FORMAT one of 'debug',
58 'structure' or 'sparql'
59 -e, --exec QUERY
61 Execute the query in the argument QUERY instead of reading the
62 query from a URI.
63 -f, --feature NAME(=VALUE)
65 Set query feature NAME to the VALUE or integer 1 if omitted.
66 The known features can be shown with -f help or --feature help.
67 -n, --dryrun
69 Prepare the query but do not execute it.
70 -q, --quiet
72 No extra information messages.
73 -s, --source URI
75 Query against RDF data at source URI by adding it to the list of
76 query data source URIs. FORMAT to 'simple' (default) or 'xml'
77 (an experimental XML format)
78 -v, --version
80 Print the rasqal library version and exit.
81 -w, --walk-query
83 Walk the query and display it using the API.
84
86 SPARQL Query Language for RDF, Eric Prud'hommeaux and Andy Seaborne
87 (eds), W3C Candidate Recommendation, 6 April 2006.
88 http://www.w3.org/TR/2006/CR-rdf-sparql-query-20060406/
89 ⟨http://www.w3.org/TR/2006/CR-rdf-sparql-query-20060406/⟩
90 SPARQL Query Results XML Format, Jeen Broekstra and Dave Beckett (eds),
92 W3C Candidate Recommendation, 6 April 2006.
93 http://www.w3.org/TR/2006/CR-rdf-sparql-XMLres-20060406/
94 ⟨http://www.w3.org/TR/2006/CR-rdf-sparql-XMLres-20060406/⟩
95 SPARQL Query Results XML Format, Edited by Dave Beckett, W3C Working
97 Draft, 27 May 2005. Work in progress. http://www.w3.org/TR/2005/WD-
98 rdf-sparql-XMLres-20050527/ ⟨http://www.w3.org/TR/2005/WD-rdf-sparql-
99 XMLres-20050527/⟩
100 SPARQL Variable Binding Results XML Format, Edited by Dave Beckett, W3C
102 Working Draft, 21 December 2004. Work in progress.
103 http://www.w3.org/TR/2004/WD-rdf-sparql-XMLres-20041221/
104 ⟨http://www.w3.org/TR/2004/WD-rdf-sparql-XMLres-20041221/⟩
105 RDQL - A Query Language for RDF, Andy Seaborne, W3C Member Submission 9
107 January 2004 http://www.w3.org/Submission/2004/SUBM-RDQL-20040109/
108 ⟨http://www.w3.org/Submission/2004/SUBM-RDQL-20040109/⟩
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111 librasqal(3),[22mrasqal-config(1),libraptor(3)
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115 Dave Beckett - http://purl.org/net/dajobe/
116 ⟨http://purl.org/net/dajobe/⟩
117 2007-02-17 roqet(1)