Node-red : file -- write & set ownership

[TotallyInformation]

This is cropping up repeatedly with seemingly a new generation of Node-RED users. So I've created an FAQ:

Should I install and/or run Node-RED with an admin account? (SUDO)

You MAY install Node-RED using elevated privileges (e.g. using sudo on a Linux system) - this is generally required if installing as a "global" node-red install -g ..... Which many people do. You should NOT run Node-RED using a privileged account (e.g root on Linux systems). Since this is very insecure and will also almost certainly cause you many issues later on. For a low security installation, you might install globally using elevated privileges and run using the same account as you usuall…