img2grd(1gmt) on Linux
The text d3ff4676407f, as Debian 4.0 (Etch) shipped it.
Extract region of img in Mercator or geographic form
Flags it lists
-
-D -
-E -
-G -
-L -
-M -
-N -
-R -
-S -
-T -
-V -
-W -
-m