You don't need to register the python code as a plugin if you are only
using it in this kind of script.
Link to a ZIP with a sample Python script and a sample shell
https://www.dropbox.com/s/hgg08yen5220wu9/gimpbatch.zip?dl=0
(written in Gimp 2.6 times but not much changes since)
On
Can I improve this somehow?
I have a gimp plugin as myplugin.py. I want to run this from the command
line on given file(s). I wrote this script which works, but I'm wondering
if I can improve it at all. I have this script in a folder, and the
plugin in a subfolder gimpplugin/