silent@desk:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree... 50%



Building dependency tree       
Reading state information... 0%
Reading state information... Done

















The following packages have been kept back:
  linux-restricted-modules-generic
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
silent@desk:~$ 
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silent@desk:~$