Apologies for the n00b question. I've installed Plex Media Server on Ubuntu 14.04, and it seemed to be ignoring some folders and files. A very helpful person over at the Plex forums suggested I needed to ensure Plex had the proper permissions to read and access the files, and shared with me the following commands:
cd /directory-containing-media
sudo find . -type d -print -exec chmod 755 {} \;
sudo find . -type f -print -exec chmod 644 {} \;
It's working well, but I have a lot of sub-folders/subdirectories and it's very time consuming to run in every separate folder. What's the best way to get it to run against all files in all sub-folders? I'm guessing it's to use '-r', but I'm not sure where to put it or if I need any other options etc.