csg_density(1) on Linux
The text 0538e1ea5ba2, as Debian 10 (Buster) shipped it.
Part of the VOTCA package
Flags it lists
-
--block-length -
--cg -
--help -
--map-ignore -
--nframes -
--out -
--ref -
--rmax -
--top -
--trj -
--verbose -
-h -
-v