$ sudo apt install packagekit Reading package lists... Done Building dependency tree Reading state information... Done packagekit is already the newest version (1.1.13-2ubuntu1). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
$ sudo apt install packagekit
Reading package lists... Done
Building dependency tree
Reading state information... Done
packagekit is already the newest version (1.1.13-2ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.