tracker-extract(1) User Commands tracker-extract(1)

NAME

tracker-extract - Extract metadata from a file.

SYNOPSYS

tracker extract FILE

DESCRIPTION

tracker extract reads the file provided and extracts any metadata it
can from this file, then displays the metadata on standard output.

The metadata is displayed as a SPARQL update command, that can be run
against a SPARQL endpoint to update its copy of the metadata.

The actual extraction is done by a separate process. This is done to
isolate the calling process from any memory leaks or crashes in the
libraries Tracker uses to extract metadata.

For more information see the libtracker-extract reference
documentation.

OPTIONS

-v, --verbosity=<LEVEL>
This sets the log verbosity for the extractor process.

The possible LEVEL options are:

+o debug - Show EVERYTHING, from debug messages to errors.

+o detailed - Show enough detail to understand what is
happening.

+o minimal - Show an overview of what is going on

+o errors - Show only warnings, criticals, errors or fatal
events.


-o, --output-format=<FORMAT>
Choose which format to use to output results. Supported
formats are sparql and turtle.

EXAMPLES

Using command line to extract metadata from a file:

$ tracker extract /path/to/some/file.mp3

ENVIRONMENT

TRACKER_EXTRACTORS_DIR
This is the directory which tracker uses to load the shared
libraries from (used for extracting metadata for specific file
types). These are needed on each invocation of tracker-store.
If unset it will default to the correct place. This is used
mainly for testing purposes. The default location is
/usr/lib/tracker-1.0/extract-modules/.

TRACKER_EXTRACTOR_RULES_DIR
This is the directory which tracker uses to load the rules
files from. The rules files describe extractor modules and
their supported MIME types. The default location is
/usr/share/tracker/extract-rules/.

TRACKER_USE_CONFIG_FILES
Don't use GSettings, instead use a config file similar to how
settings were saved in 0.10.x. That is, a file which is much
like an .ini file. These are saved to $HOME/.config/tracker/

SEE ALSO

tracker-store(1), tracker-sparql(1), tracker-stats(1),
tracker-info(1).

/usr/lib/tracker-1.0/extract-modules/

/usr/share/tracker/extract-rules/

GNU April 2016 tracker-extract(1)