Getting response_variable to work with shell command

Configuration
1

I tried to get a shell commands return value in an automation based on the example in Shell Command - Home Assistant.

However when I try to execute the automation I get the following error:

Script does not support ‘response_variable’ for service ‘response_variable’ which does not support response data… Got {‘type’: ‘execute_script’, ‘sequence’: [{‘service’: ‘shell_command.test_return_code’, ‘response_variable’: ‘todo_response’}], ‘id’: 45}

Does anyone have a working configuration where they get the result of the shell command? If so please share it with the class.

test.sh:

#!/bin/bash
echo "Please work!"
echo 1 > /config/entities/shell/test.txt
exit 0

configuration.yaml:

shell_command: !include_dir_merge_named entities/shell/yamls

test.yaml:

test_return_code: "bash /config/entities/shell/test.sh"

automation:

alias: Shell Result Test
description: ""
trigger: []
condition: []
action:
  - service: shell_command.test_return_code
    response_variable: return_response
mode: single

When removing response_variable from the service call the service is executed because test.txt is created.

  - service: shell_command.test_return_code

I’m running Home Assistant 2023.7.2.

2

Work for me, same script:

- alias: Shell Result Test
  id: 7c29e2fc-b1c4-476f-8a3a-ef437756d911
  description: ""
  trigger: []
  condition: []
  action:
    - service: shell_command.test_return_code
      response_variable: return_response
    - if: "{{ return_response['returncode'] == 0 }}"
      then:
        - service: notify.smtp
          data:
            title: "Return"
            message: "{{ return_response['stdout'] }}"
      else:
        - service: notify.smtp
          data:
            title: "ToDo file error"
            message: "{{ return_response['stderr'] }}"
  mode: single

email:

image
image1051×338 18.8 KB

2 Likes
3

What version of HA are you running? Also what type of installation? I’m running it in docker, wonder if that could be the issue.

4

Running docker as well. That was on 2023.8.1.

5

I updated to 2023.8.1 and it is indeed working now.
Thank you good sir.

6

Hello @koying , maybe you can help me with my problem too. I use this integration for SSH commands on my servers: GitHub - zhbjsh/homeassistant-ssh: Control and monitor devices in Home Assistant by executing commands via SSH. This is the only one I have found that allows me to set a timeout to 0 and thus get the remote terminal output.

I have tried to recreate it somehow using your example, but I fail to get “stdout”, “stderr” or “exit: 0” into a template.
I can’t get to grips with “extracting” the response variables. This is beyond my horizon.

“hifi_update” is the name of my response variable and this is the output:

results:
  - device_id: 883d93ecc43bcf23e2108bf8ce3ab991
    device_name: HiFi-System
    success: true
    command: sudo apt update && sudo apt upgrade
    stdout:
      - OK:1 http://packages.azlux.fr/debian bullseye InRelease
      - OK:2 http://raspbian.raspberrypi.org/raspbian bullseye InRelease
      - OK:3 http://archive.raspberrypi.org/debian bullseye InRelease
      - OK:4 https://dtcooper.github.io/raspotify raspotify InRelease
      - Paketlisten werden gelesen…
      - Abhängigkeitsbaum wird aufgebaut…
      - Statusinformationen werden eingelesen…
      - Alle Pakete sind aktuell.
      - Paketlisten werden gelesen…
      - Abhängigkeitsbaum wird aufgebaut…
      - Statusinformationen werden eingelesen…
      - Paketaktualisierung (Upgrade) wird berechnet…
      - >-
        0 aktualisiert, 0 neu installiert, 0 zu entfernen und 0 nicht
        aktualisiert.
    stderr:
      - ""
      - >-
        WARNING: apt does not have a stable CLI interface. Use with caution in
        scripts.
      - ""
      - ""
      - >-
        WARNING: apt does not have a stable CLI interface. Use with caution in
        scripts.
      - ""
    code: 0

All I want is to use “code: 0” for a template but I don’t know how. The “templating” is unfortunately the worst documentation available in Home Assistant. I’ve been working on it for months… how do you extract this data?