grdproject(1) on Linux
The text 0b88887fc633, as Debian 3.0 (Woody) shipped it. The page shows this text now.
Forward and Inverse map transformation of 2-D grd files
Flags it lists
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-A -
-C -
-D -
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-F -
-G -
-I -
-J -
-M -
-N -
-R -
-S -
-V