Nano is pretty decent for that reason and I definitely wouldn't grumble at having to use it for tiny tasks like a few lines of config file. Including nano (or a

Nano is pretty decent for that reason and I definitely wouldn't grumble at having to use it for tiny tasks like a few lines of config file. Including nano (or any editor) inside cattle doesn't seem like it should be necessary, though. If you can open a shell then you should be able to use tramp or something similar.