rdfproc
Process and query RDF data stores
TLDR
Query RDF store
$ rdfproc [store] query sparql - "[SELECT * WHERE { ?s ?p ?o }]"
Parse RDF file$ rdfproc [store] parse [file.rdf]
Serialize to format$ rdfproc [store] serialize ntriples
Add statement$ rdfproc [store] add [subject] [predicate] [object]
Print all statements$ rdfproc [store] print
SYNOPSIS
rdfproc [options] store command [args]
DESCRIPTION
rdfproc is a command-line utility for processing RDF data using the Redland RDF library. It can parse, store, query, and serialize RDF data.
PARAMETERS
parse file
Parse and load RDF file.query lang uri query
Execute query.serialize format
Output in format.print
Print all statements.add s p o
Add triple.remove s p o
Remove triple.
EXAMPLES
$ # Create store and parse file
rdfproc mystore parse data.rdf
# SPARQL query
rdfproc mystore query sparql - "SELECT * WHERE { ?s ?p ?o } LIMIT 10"
# Serialize as N-Triples
rdfproc mystore serialize ntriples
# Add triple
rdfproc mystore add "http://example.org/s" "http://example.org/p" "value"
# Print all
rdfproc mystore print
rdfproc mystore parse data.rdf
# SPARQL query
rdfproc mystore query sparql - "SELECT * WHERE { ?s ?p ?o } LIMIT 10"
# Serialize as N-Triples
rdfproc mystore serialize ntriples
# Add triple
rdfproc mystore add "http://example.org/s" "http://example.org/p" "value"
# Print all
rdfproc mystore print
FORMATS
$ rdfxml - RDF/XML
ntriples - N-Triples
turtle - Turtle
ntriples - N-Triples
turtle - Turtle
INSTALL
sudo apt install redland-utils
sudo dnf install redland
sudo pacman -S redland
sudo apk add redland
sudo zypper install redland
brew install redland
nix profile install nixpkgs#redland
CAVEATS
Part of Redland RDF libraries. Stores are persistent by default. Use - for stdin/stdout.
HISTORY
rdfproc is part of Redland RDF Libraries by Dave Beckett, providing RDF processing since 2000.