gdalsrsinfo --version (return code: 0)
GDAL 2.2.1, released 2017/06/23
gdalsrsinfo --help (return code: 1)
Usage: gdalsrsinfo [options] srs_def
srs_def may be the filename of a dataset supported by GDAL/OGR from which to extract SRS information
OR any of the usual GDAL/OGR forms (complete WKT, PROJ.4, EPSG:n or a file containing the SRS)
Options:
[--help-general] [-h] Show help and exit
[-p] Pretty-print where applicable (e.g. WKT)
[-V] Validate SRS
[-e] Search for EPSG number corresponding to SRS (experimental)
[-o out_type] Output type { default, all, wkt_all,
proj4, epsg,
wkt, wkt_simple, wkt_noct, wkt_esri,
mapinfo, xml }