>tree -if | grep -i "GRF$" > grflist.cfg

data/ottdc_grfpack/ca/canset/cansetw.grf
data/ottdc_grfpack/cs/csdset/csdseto.grf
data/ottdc_grfpack/cs/rail-cs/rail-cs-ottd.grf
data/ottdc_grfpack/de/dbsetxl/dbsetxlw.grf
data/ottdc_grfpack/def/ae_city/ae_cityw.GRF
data/ottdc_grfpack/def/ae_rura/ae_ruraw.GRF
data/ottdc_grfpack/def/ae_subu/ae_subuw.GRF
data/ottdc_grfpack/def/basic_platforms/basic_platformsw.grf
data/ottdc_grfpack/def/brickfreight/brickfreightw.GRF
data/ottdc_grfpack/def/buffers/buffers.grf
data/ottdc_grfpack/def/harbour/harbourw_456.grf
data/ottdc_grfpack/def/jcindsta/jcindstaw.grf
data/ottdc_grfpack/def/modernsuburban/modernsuburbanw.GRF
data/ottdc_grfpack/def/newstats/newstatsw.grf
data/ottdc_grfpack/def/newwater/newwaterw_412.grf
data/ottdc_grfpack/def/ngrails/ngrailsw.grf
data/ottdc_grfpack/def/pb_av8/pb_av8w.grf
data/ottdc_grfpack/def/pb_viaduct/pb_viaduct.grf
data/ottdc_grfpack/def/planeset/planesetw_459.grf
data/ottdc_grfpack/def/platforms/platformsw.GRF
data/ottdc_grfpack/def/stolentrees/stolentreesw_162_108.grf
data/ottdc_grfpack/def/ttrs3/ttrs3w.GRF
data/ottdc_grfpack/def/ukwaypoints/ukwaypointsw.grf
data/ottdc_grfpack/jp/japanset/japansetw.grf
data/ottdc_grfpack/jp/japstatw/japstatw.grf
data/ottdc_grfpack/jp/jpset_bld/jpset_bldw.GRF
data/ottdc_grfpack/jp/jpset_lnd/jpset_lndw.GRF
data/ottdc_grfpack/jp/jpset_tre/jpset_trew.GRF
data/ottdc_grfpack/nl/dutchcat/dutchcatw.grf
data/ottdc_grfpack/no/nsbset/LangNor.grf
data/ottdc_grfpack/no/nsbset/nsbsetw.grf
data/ottdc_grfpack/old/pb_av8/pb_av8w.grf
data/ottdc_grfpack/old/pb_viaduct/pb_viaduct.grf
data/ottdc_grfpack/old/ttrs3/ttrs3w.GRF
data/ottdc_grfpack/old/ukwaypoints/ukwaypointsw.grf
data/ottdc_grfpack/tropic/troprs/troprs_w.grf
data/ottdc_grfpack/uk/pb_hovs_bus/pb_hovs_bus.grf
data/ottdc_grfpack/uk/pb_ukrs/pb_ukrs.grf
data/ottdc_grfpack/uk/ukrsap1/ukrsap1w.grf
data/ottdc_grfpack/us/usset/ussetw.grf
data/ottdc_grfpack/us/usstats/usstatsw.grf
data/ottdc_grfpack_old_pgs/pgs-counw.grf
data/ottdc_grfpack_old_pgs/pgs-freiw.grf
data/ottdc_grfpack_old_pgs/pgs-silvw.grf
data/ottdc_grfpack_old_pgs/pgs-subuw.grf
data/ottdc_grfpack_testing/alpine/alpinew.grf
data/ottdc_grfpack_testing/alpine/trkfoundw.grf
data/ottdc_grfpack_testing/planeset/PlaneSetw.grf
data/ottdc_grfpack_testing/sr/srsng/srsngw.grf
data/ottdc_grfpack_testing/sr/srssg/srssgw.grf

Mainserver

data/ottdc_grfpack/def/ae_city/ae_cityw.GRF
data/ottdc_grfpack/def/ae_rura/ae_ruraw.GRF
data/ottdc_grfpack/def/ae_subu/ae_subuw.GRF
data/ottdc_grfpack/def/basic_platforms/basic_platformsw.grf
data/ottdc_grfpack/def/brickfreight/brickfreightw.GRF
data/ottdc_grfpack/def/buffers/buffers.grf
data/ottdc_grfpack/def/harbour/harbourw_456.grf
data/ottdc_grfpack/def/jcindsta/jcindstaw.grf
data/ottdc_grfpack/def/modernsuburban/modernsuburbanw.GRF
data/ottdc_grfpack/def/newstats/newstatsw.grf
data/ottdc_grfpack/def/newwater/newwaterw_412.grf
data/ottdc_grfpack/def/ngrails/ngrailsw.grf
data/ottdc_grfpack/def/pb_av8/pb_av8w.grf
data/ottdc_grfpack/def/pb_viaduct/pb_viaduct.grf
data/ottdc_grfpack/def/planeset/planesetw_459.grf
data/ottdc_grfpack/def/platforms/platformsw.GRF
data/ottdc_grfpack/def/stolentrees/stolentreesw_162_108.grf
data/ottdc_grfpack/def/ttrs3/ttrs3w.GRF
data/ottdc_grfpack/def/ukwaypoints/ukwaypointsw.grf