If you have Linux server with shared folders or drives on your network, and you have Microsoft Windows machines accessing these folders, chances are you will have Thumbs.db files all over the shop. Easy to fix with this simple Cron setup.
# crontab -e
First you will need to access your Cron jobs
0 0 * * * find /location/of/your/shared/folder(s)/ -name "Thumbs.db" -delete
Insert the above Cron job on one line and make changes wherever necessary. This script will remove the Thumbs.db files every day at midnight.
Save the file (":x") and walla you're done.