New here, but loving Ubuntu. I have this nagging issue hoping to get help resolving.
username@username:~$ sudo apt-get update
[sudo] password for jovial:
N: Ignoring file 'medibuntu.list.save.1' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Type '<!DOCTYPE' is not known on line 1 in source list /etc/apt/sources.list.d/medibuntu.list
E: The list of sources could not be read.
username@username:~$
terminal
output ofls -al /etc/apt/sources.list.d/medibuntu*
andcat /etc/apt/sources.list.d/medibuntu.list.save.1
andcat /etc/apt/sources.list.d/medibuntu.list.save
and I'll take a look for you.