Command Line Interface

You can download the latest release of the CLI here.

You can browse older versions here.

You can run the JAR using the java -jar command. You can run the application with no arguments to output documentation:

java -jar bald-cli.jar

The application accepts arguments in the following format:

java -jar bald-cli.jar [options] inputFile [outputFile]

Where inputFile is the location of the NetCDF file to convert, and outputFile is the location of the file in which to output the RDF graph. If you don’t specify an outputFile, the graph will be printed on the command line.

See the quick reference for the full list of options.

Example

To read a NetCDF binary array and emit it to a file in Turtle format:

java -jar bald-cli.jar --uri http://test.binary-array-ld.net/example /path/to/netcdf.nc /path/to/graph.ttl

RDF Format

By default, the RDF graph output will be in Turtle format. You can use the --output or -o option to specify the RDF format to emit. This option can accept any of the RDF formats supported by Apache Jena, eg. JSON-LD, RDFXML. See here for supported formats.

Context

The CLI supports contexts. You can find the documentation for this feature here.

Aliases

The CLI supports aliases. You can find the documentation for this feature here.

Download URL

The CLI supports download URLs.

Quick Reference

You can supply command line options in long form with the -- prefix or short form with -, followed by their value.

Option	Short form	Value	Default
–help	-h	Flag to show usage documentation (no value).
–uri	-u	The URI which identifies the dataset.	Input file URI
–output	-o	Output format, eg. ttl, json-ld, rdfxml.	ttl
–context	-c	Comma-delimited list of JSON-LD context files.
–alias	-a	Comma-delimited list of RDF alias files.
–download	-d	The URL from which the original file can be downloaded, if available.