cleaning

#!/bin/bash
while :
do
        echo '{"content": "' > /home/pi/bticino/assets/bash/lastCommands.json
        cat /home/pi/bticino/assets/bash/serialContent.json >> ./lastCommands.json
        echo '"}' >> /home/pi/bticino/assets/bash/lastCommands.json
        cat /home/pi/bticino/assets/bash/lastCommands.json |tr -d "\n" > /home/pi/bticino/assets/bash/serialF.json
        sleep 5
done