pgmramp --version (return code: 0)
pgmramp: Using libpbm from Netpbm Version: Netpbm 10.0
pgmramp: BSD defined
pgmramp: RGB_ENV='RGBDEF'
pgmramp: RGBENV= 'RGBDEF' (env vbl is unset)
pgmramp -h (return code: 1)
usage: pgmramp -lr|-tb|-rectangle|-ellipse <width> <height>