ussop@Roronoa-Zoro:~$ sudo apt-get update && sudo apt-get install debsums && sudo debsums --all --changed | nc termbin.com 9999
[sudo] password for ussop: 
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Hit:2 http://archive.canonical.com/ubuntu xenial InRelease                     
Hit:3 http://archive.canonical.com xenial InRelease                            
Hit:4 http://be.archive.ubuntu.com/ubuntu xenial InRelease                     
Get:5 http://be.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]    
Get:6 http://be.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]  
Get:7 https://repo.skype.com/deb stable InRelease [4.487 B]
Ign:7 https://repo.skype.com/deb stable InRelease
Fetched 311 kB in 1s (168 kB/s)
Reading package lists... Done
W: GPG error: https://repo.skype.com/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1F3045A5DF7587C3
W: The repository 'https://repo.skype.com/deb stable InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
debsums is already the newest version (2.1.2).
The following packages were automatically installed and are no longer required:
  linux-headers-4.8.0-36 linux-headers-4.8.0-36-generic linux-headers-4.8.0-58
  linux-headers-4.8.0-58-generic linux-image-4.8.0-36-generic
  linux-image-4.8.0-58-generic linux-image-extra-4.8.0-36-generic
  linux-image-extra-4.8.0-58-generic snap-confine
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 70 not upgraded.
Use netcat.