It used to be a native function of Konqueror/Dolphin4, but
apparently it's rubbish and should be a service menu, so here's my attempt at it.
Code:
# This is free, open-source, and all that kind of stuff
[Desktop Entry]
Type=Service
X-KDE-ServiceTypes=KonqPopupMenu/Plugin
MimeType=all/all
Actions=goToRealPath;
ServiceTypes=KonqPopupMenu/Plugin
[Desktop Action goToRealPath]
Name=Go To Real Path
Exec=dolphin "$(dirname
...