Shell Command

This component can expose regular shell commands as services. Services can be called from a script or in automation.

# Example configuration.yaml entry
# Exposes service shell_command.restart_pow
  restart_pow: touch ~/.pow/restart.txt

Configuration variables:

  • Alias for the command
  • Command itself.

The commands can be dynamic, using templates to insert values for arguments. When using templates, shell_command runs in a more secure environment which doesn’t allow any shell helpers like automatically expanding the home dir ~ or using pipe symbols to run multiple commands.

Any service data passed into the service call to activate the shell command will be available as a variable within the template.

# Apply value of a GUI slider to the shell_command
  - alias: run_set_ac
      platform: state
      entity_id: input_slider.ac_temperature
      service: shell_command.set_ac_to_slider

    name: A/C Setting
    initial: 24
    min: 18
    max: 32
    step: 1

  set_ac_to_slider: 'irsend SEND_ONCE DELONGHI AC_{{ states.input_slider.ac_temperature.state }}_AUTO'