I can't pass the command_line arguments from sensors

Configuration
1

I’m trying to pass argument to the called .sh script, from my sensor. Unfortunately, I can’t get it to work:

command_line:
  - switch:
      unique_id: "vpnvpn"
      name: 'VPN'
      command_on: "/home/mona/home_assistant_commands_observer.sh {{ states('sensor.selected_config') }}"
	  command_off: '/home/mona/home_assistant_commands_observer.sh vpnstop'
      command_state: '/home/mona/home_assistant_commands_observer.sh vpnstatus'
      scan_interval: 15

2023-07-26 03:43:08.543 ERROR (SyncWorker_8) [homeassistant.components.command_line.utils] Command failed (with return code 2): /home/mona/home_assistant_commands_observer.sh {{ states('sensor.selected_config') }}
2023-07-26 03:43:08.556 ERROR (MainThread) [homeassistant.components.command_line] Command failed: /home/mona/home_assistant_commands_observer.sh {{ states('sensor.selected_config') }}

Originally, I was trying to load the config directly from the input dropdown menu, but it also was failing so I created a template sensor. It seems like HA is not reading the correct state, just passes the entire command.

input_select:
  ovpn_files:
    name: "OVPN Files"
    options:
      - None Available
      - SE.ovpn
    initial: "SE.ovpn"

I would appreciate some workaround. This is is annoying, I spent 10x less time for complicated things, and I can’t pass simple arguments.

2

What’s the meaning of return code 2 in general?

And did you sort this out meanwhile?