--- name: "roqet" section: "1" platform: "linux" package: "rasqal" version: "1:0.9.33-9" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/roqet" --- # roqet(1) Rasqal RDF query utility ## NAME roqet - Rasqal RDF query utility ## SYNOPSIS **roqet** \[**OPTIONS**\] *\* *\[base-URI\]*\ **roqet** \[**OPTIONS**\]**-e** *query-string* *\[base-URI\]*\ **roqet** \[**OPTIONS**\]**-p** *sparql-protocol-service-URI* *query-URI* *\[base-URI\]*\ **roqet** \[**OPTIONS**\]**-p** *sparql-protocol-service-URI* \[**-e** *query-string* \] *\[base-URI\]*\ **roqet** \[**OPTIONS**\]**-t** *query results file* *\[base-URI\]* ## DESCRIPTION The **roqet** utility allows querying of RDF content using the **Rasqal** RDF query library, printing the results for variable bindings, RDF graph or boolean results in a variety of formats. The query is read from *query-URI* and the optional *base-URI* is used as the base URI of the query if present. ## MAIN OPTIONS roqet uses the usual GNU command line syntax, with long options starting with two dashes (\`-') if supported by the getopt\_long function. Otherwise only the short options are available. - **-e, --exec QUERY** Execute the query string in the argument *QUERY* instead of reading the query from a URI (when **-e** / **--exec** is not given). - **-i, --input LANGUAGE** Set the input query *LANGUAGE* to one of the supported languages which includes 'sparql' (SPARQL Query Language for RDF, default), 'sparql11' and 'laqrs'. The full list of supported languages and subsets is given in the help summary with the **-h** / **--help** option. - **-p, --protocol SERVICE-URI** Call the SPARQL HTTP protocol *SERVICE-URI* to execute the query instead of executing it inside the Rasqal query engine locally ( when **-e** is given, or a query string given) - **-r, --results FORMAT** Set the query results output *FORMAT* - For variable bindings, the values of *FORMAT* vary upon what Rasqal supports but include 'simple' for a simple text format (default), 'xml' for the SPARQL Query Results XML format, 'csv' for SPARQL CSV, 'tsv' for SPARQL TSV, 'rdfxml' and 'turtle' for RDF syntax formats, and 'json' for a JSON version of the results. - For RDF graph results, the values of *FORMAT* are 'ntriples' (N-Triples, default), 'rdfxml-abbrev' (RDF/XML Abbreviated), 'rdfxml' (RDF/XML), 'turtle' (Turtle), 'json' (RDF/JSON resource centric), 'json-triples' (RDF/JSON triples) or 'rss-1.0' (RSS 1.0, also an RDF/XML syntax). - The exact list of formats depends on what [libraptor2(3)](/libraptor2/3.md) was built with but is given correct in the usage message with -h. - **-R, --results-input-format FORMAT** Set the query results input *FORMAT* - This is for use with -t and takes values of 'xml' for the SPARQL Query Results XML format,, 'csv' for SPARQL CSV,, 'tsv' for SPARQL TSV, 'turtle' and 'rdfxml' for RDF syntax formats. - **-t, --results-input FILE** Read query results from *FILE* ## OTHER OPTIONS - **-c, --count** Only count the triples and produce no other output. - **-d, --dump-query FORMAT** Print the parsed query out in a given *FORMAT* one of 'none' (default), 'debug', 'structure' or 'sparql' - **-D, --data URI** Add RDF data source URI (not a named graph). If no data sources are given, the query itself must point to the data such as via SPARQL FROM *uri* statements. - **-E, --ignore-errors** Do not print error messages and do not exit with a non-0 status. - **-f, --feature NAME(=VALUE)** Set query feature *NAME* to the *VALUE* or integer 1 if omitted. The known features can be shown with **-f help** or **--feature help**. - **-F, --format NAME** Set the data source format *name* for subsequent data graphs called with **-D** / **--data** or **-G** / **--named**. The default if this is not specified is for the query engine to guess. The *name* is a Raptor parser name. - **-G, --named URI** Add RDF data source URI (named graph) - **-h, --help** Show a summary of the options. - **-n, --dryrun** Prepare the query but do not execute it. - **-q, --quiet** No extra information messages. - **-s, --source URI** Add RDF data source URI (named graph) *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. - **-W, --warnings LEVEL** Set the warning *LEVEL* in the range 0 (do not warn about anything) to 100 (show every warning). The Rasqal default is in the middle (50). ## EXAMPLES - **roqet sparql-query-file.rq** Run a SPARQL query contained in the local file sparql-query-file.rq. The data used would be described in FROM statements in the query file. - **roqet -q -i sparql http://example.org/sparql-query.rq** Run a SPARQL query that is in the web at URI http://example.org/sparql-query.rq without an extra messages (quiet, -q). - **roqet -q query-file.rq http://example.org/base/** Run an query (default languge SPARQL) from a local file query-file.rq but using base URI http://example.org/base/ to resolve any relative URIs. - **roqet -q -i sparql -r xml http://example.org/sparql-query.rq** Run a SPARQL query that is in the web at URI http://example.org/sparql-query.rq and format the results in the SPARQL Query Results XML format with no extra messages. - **roqet -i sparql -e 'SELECT \* WHERE { ?s ?p ?o }' -D stuff.rdf** Run a SPARQL query given on the command line against data in the file stuff.rdf. The type of the file will be guessed and likely is of format RDF/XML. - **roqet -t result.srx -r html** Read a SPARQL query results in SPARQL Query Results XML format (default) and print it in HTML. - **roqet -t result.ttl -R turtle -r csv** Read a SPARQL query results in RDF/Turtle format and print it in CSV. ## CONFORMING TO *SPARQL 1.1 Query Language*, Steve Harris and Andy Seaborne (eds), W3C Recommendation, 21 March 2013 http://www.w3.org/TR/2013/REC-sparql11-query-20130321/ ⟨http://www.w3.org/TR/2013/REC-sparql11-query-20130321/⟩ *SPARQL Query Results XML Format (Second Edition)*, Sandro Hawke (Second Edition ed), Jeen Broekstra and Dave Beckett (eds), W3C Recommendation, 21 March 2013. http://www.w3.org/TR/2013/REC-rdf-sparql-XMLres-20130321/ ⟨http://www.w3.org/TR/2013/REC-rdf-sparql-XMLres-20130321/⟩ ## SEE ALSO **[librasqal(3)](/librasqal/3.md),**[libraptor(3)](/libraptor/3.md) ## CHANGES ## AUTHOR Dave Beckett - http://www.dajobe.org/ ⟨http://www.dajobe.org/⟩\