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Setting tail -n 1 to ignore blank files

I am currently using the follow command as part of a cron job.

tail -n 1 /var/www/vhosts/*/statistics/logs/error*log > /var/www/vhosts/summary.log/error-log.txt

This works great, but when some of the error*log files are empty, I get empty lines from tail. Is it possible to have tail ignore empty files?

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8/22/2022 - Mon