The correct Video Naming convention!

I am new to this forum, but excited to learn more about Kodi. I am using an Odroid C2 with Kodi installed. I have an external HD attached with video files. I had Kodi scan this new drive and noticed that some of my files did not get any cover art, details, actors etc. I have some movies stored in a folder set (Video_TS, Audio_TS) and these were all fine. I have some MKV files that did not get any metadata attached. For example I have a folder called movies, Avatar, tv001.mkv the file maybe named. Do I need to change the tv001.mkv to Avatar.mkv? Is there a way to do this in bulk. Is the only way to do it on Kodi direct or can I SSH into the device and edit a file with this information in it. Thanks for any ideas on this topic.