Run command after boot

General Discussion
1

I need to run the following command after boot

arecord -f cd -t raw -D hw:1,0 -f S16_LE --buffer-size=1024 | aplay -f cd -t raw -D hifiberryMiniAmp -f S16_LE --buffer-size=1024

Basically it receives music from a usb DAC and plays it to the amplifier. I have modified asound.conf and it works nicely.

The problem is how it is best to run it continuously?

2

You could use crontab for this or create an own systemd unit

3

Thanks! Any pointers on how to create my own systemd unit on dietpi? Or is it just as any other systemd?

4

It’s like on every other Debian system.

5

You could also enter the command in rc.local as an autostart.

6

Until now I had the command in a /var/lib/dietpi/postboot.d/startmusic file and it just works. The problem is that sometimes it hangs and stops playing, especially after a long time (it plays 24x7). what I am doing is rebooting to start playing again.

I am trying to understand how could I have it as a service and ideally showing in the services webpage of the dashboard, so that I could simply login to the dashboard and restart the service. Is my approach correct?

7

First step would be to create the service unit. There are plenty of guides on the web how to do this for systemd