tracker-extract - Extract metadata from a file.
Please see following description for synopsis
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 documenta-
tion.
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 happen-
ing.
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 sup-
ported 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/
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------------+
|Availability | library/desktop/search/tracker |
+---------------+--------------------------------+
|Stability | Pass-through volatile |
+---------------+--------------------------------+
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/
NOTES
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://down-
load.gnome.org/sources/tracker/1.12/tracker-1.12.0.tar.xz
Further information about this software can be found on the open source
community website at https://www.gnome.org/.
GNU April 2016 tracker-extract(1)