How to Use Linux Rename Command

Change the naming convention of Plex

File name - "heathcliff138.mp4"

rename -v 's/heathcliff1/heathcliffS01/' *.mp4
rename -v 's/heathcliffS01/heathcliffS01E/' *.mp4

New File name - "heathcliffS01E38.mp4"

Replacing a Part of a Filename

Replacing a different part of the filename follows the same syntax. To rename example1.txt, example2.txt, and example3.txt to test1.txt, test2.txt, and text3.txt, use:

rename -v 's/example/test/' *.txt

Reference:

"How to Rename Files in Linux.", https://phoenixnap.com/kb/rename-file-linux