Launch shell command from Magic

dunarri · February 6, 2021, 2:11am

Im looking to run a shell command from magic, wondering how to do it in there.

I installed the command launcher plugin.

Actually i want to run espeak…

–John

mzanetti · February 6, 2021, 7:45am

Hi John,

You’re on the right path. The commandlauncher plug-in readme has an espeak example:

github.com

nymea/nymea-plugins/blob/master/commandlauncher/README.md

# Application and Bashscript Launcher

This plugin allows you to execute system commands and start bash scripts.

## Usage

### Application launcher

The application launcher allows you to call bash applications or commands with parameters from nymea.
Once, the application started, the `running` state will change to `true`, if the application
is finished, the `running` state will change to `false`.

**Example**

An example command could be [espeak](http://linux.die.net/man/1/espeak). (`apt-get install espeak`)

    espeak -v en "Chuck Norris is using nymea"

### Bash script launcher

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dunarri · February 6, 2021, 6:34pm

Got that, and have setup espeak on a thing, and i can execute it under “My events” and it runs and works.

I must have somthing wrong in the magic, i have this setup:

ThingAction {
id: left_utv_trailer_tire_low
thingId: “738a7969-e414-4e52-a97c-b287bad15569” // Speak Tire Low // The id of the notification thing
actionName: “trigger”
}

and im trying to trigger it in an if statement using: left_utv_trailer_tire_low.execute

–John

dunarri · February 6, 2021, 8:12pm

FYI, i got this working using automatic magic rules, but would rather have it in code…humm, does automatic magic rules just create magic scripts somewhere i can look at and steal code from?

–John

mzanetti · February 7, 2021, 1:24pm

it should with the example code above by calling

left_utv_trailer_tire_low.execute({})

The {} is important currently… I suppose nymea could be tweaked to not require it when no parameters are required…