Thank you for your quick response, green_dragon37!
Now, so that I don't have weeks and weeks of these backup files accumulating on my disk, I'd like to delete those that are over a certain age old. So, if I scheduled another cron job to run after the completion of the backup job, and decided I wanted to keep three days of backup tars but delete anything older than that, would the following command work?
find /mnt/HelixBackups -mtime +3 -exec rm -f Helix_backup.*.tar.gz
I put this command together by piecing together various pieces of data found with Google. It looks (to my inexperienced eye) like it would do the job, what do you think? On some of the reference sites I saw, the line was terminated with a semi-colon (
, is that required here?