pscontour(1) on Linux
The text 356a5a407126, as Debian 2.2 (Potato) shipped it.
Contour xyz-data by direct triangulation
Flags it lists
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-: -
-A -
-B -
-C -
-D -
-E -
-G -
-H -
-I -
-J -
-K -
-L -
-M -
-N -
-O -
-P -
-R -
-T -
-U -
-V -
-W -
-X -
-Y -
-bi -
-bo -
-c