Set Give all permissions for folder on Linux
==================================
This will give any user all permissions for folders and its sub contents on Linux (such as a pi NAS for example)

sudo chmod -R 777 /var/www/html
sudo chmod -R 777 /NAS

source:
http://99.248.197.130/Notes/Tech%20Help/FreeBSD%20Help/Install%20NAS%20on%20FreeBSD.txt

Date: May 22nd, 2021