sanish@spectre-xubuntu:/etc/apt$ sudo apt-get update
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB]
Hit:2 http://gb.archive.ubuntu.com/ubuntu xenial InRelease
Hit:3 http://archive.canonical.com/ubuntu vivid InRelease
Ign:4 http://dl.google.com/linux/chrome/deb stable InRelease
Get:5 http://gb.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]
Hit:6 http://archive.canonical.com/ubuntu xenial InRelease
Hit:7 http://dl.google.com/linux/chrome/deb stable Release
Get:8 http://gb.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]
Fetched 323 kB in 0s (487 kB/s)
Reading package lists... Done
sanish@spectre-xubuntu:/etc/apt$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
sanish@spectre-xubuntu:/etc/apt$