$ sudo apt update && sudo apt full-upgrade
[sudo] password for valorie:
Get:1 http://us.archive.ubuntu.com/ubuntu artful InRelease [237 kB]
Hit:2 http://security.ubuntu.com/ubuntu artful-security InRelease
Hit:3 http://us.archive.ubuntu.com/ubuntu artful-updates InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu artful-backports InRelease
Get:5 http://us.archive.ubuntu.com/ubuntu artful/main amd64 Packages [1,141 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu artful/main i386 Packages [1,137 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu artful/main Translation-en [557 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu artful/main amd64 DEP-11 Metadata [525 kB]
Get:9 http://us.archive.ubuntu.com/ubuntu artful/main DEP-11 64x64 Icons [359 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu artful/universe i386 Packages [8,257 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu artful/universe amd64 Packages [8,295 kB]
Get:12 http://us.archive.ubuntu.com/ubuntu artful/universe Translation-en [4,765 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu artful/universe amd64 DEP-11 Metadata [2,707 kB]
Get:14 http://us.archive.ubuntu.com/ubuntu artful/universe DEP-11 64x64 Icons [7,828 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu artful/multiverse amd64 DEP-11 Metadata [43.2 kB]
Get:16 http://us.archive.ubuntu.com/ubuntu artful/multiverse DEP-11 64x64 Icons [207 kB]
Fetched 36.1 MB in 6s (5,260 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:50
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:50
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:50
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:52
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:52
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:52
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:18
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:18
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:18
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:28
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:28
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:28
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:20
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:20
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:20
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:30
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:30
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:30
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:18
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:18
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:18
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:28
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:28
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:5 and /etc/apt/sources.list:28
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:20
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:20
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:20
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:30
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:30
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:10 and /etc/apt/sources.list:30
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:50
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:50
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:50
W: Target Contents-deb-legacy (Contents-amd64) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:52
W: Target Contents-deb-legacy (Contents-i386) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:52
W: Target Contents-deb-legacy (Contents-all) is configured multiple times in /etc/apt/sources.list:48 and /etc/apt/sources.list:52
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.