Usage: fio area [OPTIONS] FEATURES...
Options:
-s, --summary Output summary statistics only
--calc-crs TEXT Projection to calculate area in
[DEFAULT=esri:54009]
--sequence / --no-sequence Write a LF-delimited sequence of texts
containing individual objects or write a single
JSON text containing a feature collection object
(the default).
--help Show this message and exit.
pip install fio-area
fio cat some-area.geojson | fio area -s
{"min": 405306050878.5006, "max": 405306050878.5006, "mean": 405306050878.5006, "sum": 405306050878.5006, "std": 0.0}