/usr/bin/gdalsrsinfo

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]       Show help on general options and exit
   [--help] [-h]          Show help and exit
   [--single-line]        Print WKT on single line
   [-V]                   Validate SRS
   [-e]                   Search for EPSG number(s) corresponding to SRS
   [-o <out_type>]          Output type { default, all, wkt_all,
                                        PROJJSON, proj4, epsg,
                                        wkt1, wkt_simple, wkt_noct, wkt_esri,
                                        wkt2, wkt2_2015, wkt2_2019, mapinfo, xml }