/usr/share/gmt/mgg/gmtfile_paths is in gmt 4.5.12-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | # $Id: gmtfile_paths 9545 2011-07-27 19:31:54Z pwessel $
#
# Directories with gmtfiles
# Currently set for SOEST data library
# Paul Wessel, January-2002
#
/home/gmt3/pwessel/DATA/NGDC/gmt
/Users/pwessel/this_gmt/src/mgg
|