grdproject(1gmt) on Linux
The text 2599b108013c, as Debian 8 (Jessie) shipped it.
Forward and Inverse map transformation of 2-D grid files
Flags it lists
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-A -
-C -
-D -
-E -
-F -
-G -
-I -
-J -
-M -
-N -
-R -
-S -
-V