grdinfo(1gmt) on Linux
The text 416a1de96a9f, as Debian 8 (Jessie) shipped it.
Get information about the contents of a 2-D grid file
Flags it lists
-
-C -
-F -
-I -
-L0 -
-L1 -
-L2 -
-M -
-T -
-V -
-f