oerheks@oerheks-workstation:~$  sudo apt-get update; sudo apt-get upgrade
[sudo] password for oerheks: 
Ign:1 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:2 http://ppa.launchpad.net/fossproject/ppa/ubuntu zesty InRelease         
Hit:3 http://archive.canonical.com/ubuntu zesty InRelease                     
Hit:4 http://dl.google.com/linux/chrome/deb stable Release               
Hit:5 https://repo.skype.com/deb stable InRelease                        
Hit:7 http://ftp.nluug.nl/os/Linux/distr/ubuntu zesty InRelease
Hit:8 http://ftp.nluug.nl/os/Linux/distr/ubuntu zesty-updates InRelease
Hit:9 http://ftp.nluug.nl/os/Linux/distr/ubuntu zesty-backports InRelease
Hit:10 http://ftp.nluug.nl/os/Linux/distr/ubuntu zesty-security InRelease
Reading package lists... Done 
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.
oerheks@oerheks-workstation:~$