Usage: gdal_create [--help] [--long-usage] [--help-general]
                   [-ot Byte|Int8|[U]Int{16|32|64}|CInt{16|32}|[C]Float{32|64}]
                   [-of <output_format>] [-outsize <xsize> <ysize>]
                   [-bands <count>] [-burn <value>]... [-a_srs <srs_def>]
                   [-a_ullr <ulx> <uly> <lrx> <lry>] [-a_nodata <value>]
                   [-mo <NAME>=<VALUE>]... [-co <NAME>=<VALUE>]... [--quiet]
                   [-if <input_dataset>]
                   <out_dataset>

Note: gdal_create --long-usage for full help.