blockmean(1gmt) on Linux
The text c4ed381d0ff8, as Debian 8 (Jessie) shipped it.
filter to block average (x,y,z) data by L2 norm
Flags it lists
-
-: -
-C -
-E -
-F -
-H -
-I -
-R -
-S -
-V -
-W -
-bi -
-bo -
-f