It’s generally better to start a new thread (including all of the information that’s requested in the template) and reference any old threads that may be relevant. There are many threads that are relevant to what you want to do, but I’ll point you to the tutorial I wrote for OH2.
executeCommandLine is part of the core, so if you just want to send a shell command then you don’t actually need the Exec Binding. You just need your second rule.
I’m guessing that you’re on OH3, in which case you aren’t using the proper syntax. It’s one of a few breaking changes that you need to keep in mind when looking at old discussions that were written for OH2.
