Trying to run shell command doesn't work from HA

Hi

I’m trying to use shell_command to send text strings at a remote audio matrix to control it. When I do the command from my linux laptop in a terminal it works perfect and matrix answers back. If I do the same with code below it does nothing and also nothing in HA logs ! If I copy/paste it in hassio terminal it gives no error but does nothing too :frowning: An idea what’s the problem ?

Thanks

Vincèn

my commut.sh script:

#!/bin/bash
echo "^SZ @1, 2$" | nc -w 2 172.16.2.11 50005

my HA yaml code:

shell_command:
  zektor_commutation: 'bash /config/commut.sh'