I have some ascii data files in a folder on an external hard drive. Is there a way to add a directory to the path, rather than copying all my data into $HOME/.gmt/cache. When I put my files in the cache folder, then GMT is able to access them, but not otherwise.
I’ve tried adding
$GMT_DATADIR = filepath
but it doesn’t work. What is the best way to add directories for GMT to have access?