Downloading exec binding

Setup, Configuration and Use Installation
1

How do I download and handle de exec binding on my Raspberry Pi?
Just downloaded the Addons .kar file and unziped it. I’m having strong issues here.

2

http://docs.openhab.org/installation/linux.html#installing-add-ons

… and move them to the /opt/openhab2/addons folder.

or for an apt-get or openHABian install:

http://docs.openhab.org/installation/linux.html#file-locations