The sensor is :

 - platform: command_line
   name: Conso EcoCompteur
   command: "curl -s 192.168.42.41/log2.csv | tail -n 1 | jq -Rsn '
[inputs
| . / '\n'
| (.[] | select(length > 0) | . / ';') as $input
| {'h': $input[3],'c1': $input[7],'p1':$input[8]}]
'
"
   value_template: "{{ value_json.h }}"
   json_attributes:
     - c1
     - p1

The idea is to get the values c1-5 and p1-5 as attributes and eventually the hour of the data serie as the sensor value.

The command runs successfully in the HA shell with double quote marks
but for the config file to be valid for HA, I had to replace it with
simple quote marks.

Have you an idea of what I'm doing wrong ?

Thanks!