ogr2ogr -s_srs "+proj=tmerc +lat_0=0 +lon_0=15 +k=0.999600 +x_0=2520000 +y_0=0 +ellps=intl +units=m +nadgrids=G:\SitDWH\CARTO\grigliati\ItalyRome40toWGS84_NTV2_GN.gsb +wktext" -t_srs "+proj=utm +zone=33 +ellps=WGS84 +datum=WGS84 +units=m" Output32633.shp InputGaussBoagaEst.shp