grdinfo(1gmt) on Linux
The text 2268e0a17b05, as Debian 4.0 (Etch) shipped it.
Get information about the contents of a 2-D grd file
Flags it lists
-
-C -
-F -
-I -
-L1 -
-L2 -
-M -
-T -
-V -
-f