How to tell which version of a application is running

Mon Apr 17 14:18:18 UTC 2017

On Mon, 17 Apr 2017 16:10:27 +0200, Xen wrote:
>Aye, the PATH would have been irrelevant since it is probably started
>by some service file,
>
>BUT I did see no service file in the main package.

"/etc/xdg/autostart/tracker-store.desktop
/usr/bin/tracker
/usr/lib/systemd/user/tracker-store.service
/usr/lib/systemd/user/tracker-writeback.service" -
http://packages.ubuntu.com/yakkety/amd64/tracker/filelist

;)