If I execute the following in the terminal it works:
screen -dmS tt-rss-daemon sudo -u www-data /usr/bin/php /usr/share/nginx/www/tt-rss/update.php --feeds --daemon
If I write the following in a Crontab (crontab -e) and restart the machine nothing happens.
@reboot screen -dmS tt-rss-daemon sudo -u www-data /usr/bin/php /usr/share/nginx/www/tt-rss/update.php --feeds --daemon
Have anyone an idea how to correct this?