Goal: copy files in the source folder to a destination folder with date mark (such as 20110131) as sub folder name. Run the backup every 10 days. 1. Csh command: cp -a <source> <dest>`date +%Y%m%d` cp -a /site.com/public_html/include/content  /site.com/content_backup/`date +%Y%m%d` 2>/site.com/content_backup/errors.txt