Very surprised to see that no one here is using gerbera
So, I suppose I cannot ask for help.
It's manpage over here http://docs.gerbera.io/en/latest/config-generate.html#generateconfig says this,
$ gerbera --create-config | sudo tee /etc/gerbera/config.xml
but the file will not create 'sudo not found'
I installed sudo, it created the file, but shows only on Terminal. Will not show up in /etc/gerbera
Thanks for your help.