gs -? | grep \/ | grep : | sed 's/\ //g' | sed 's/:/\n/g' | grep -v ^$ | xargs ls -ld
2>&1 | grep -v "No
such" | awk '{print $NF}' | tr '\n' ':'
Ghostscript's helpfile mentions its font path. However, it's not presented in a usable format, and worse, it includes directories that don't exist. This cleans it up and spits it back out in a format that you can paste into a path configuration.