I just installed the exec binding via the PaperUI. After that I wanted to configure it, but don’t know how.
When creating a Thing I can choose exec binding from the list, but this results in an empty page shown to me:
Nevermind, rebooting solved the problem.
As far as I know the only way to configure the commands the exec binding should execute is to configure things in a text file in OpenHAB’s configuration folder. After creating the things there they should appear in PaperUI and allow binding to items.
See http://docs.openhab.org/addons/bindings/exec/readme.html