Note to myself: Install http://www.sno.phy.queensu.ca/~phil/exiftool/ExifTool-10.11.dmg.
Right click a picture in Lightroom and select “Show in Finder”.
Right click the filename in Finder, press ALT key and “Copy as path name”.
Open Spotlight (Command+Space), type “terminal” there.
In Terminal type exiftool Command+V.