$ ls -l /periodic/assets/
drwxr-sr-x 3 http http   4096 Jul 23  2017 ../        
-rw-r--r-- 1 http http  15294 Feb  1  2017 data.csv   
-rw-r--r-- 1 http http 339968 Feb  1  2017 elements.db
-rw-r--r-- 1 http http     75 Feb  1  2017 style.css