How to remove the static message that appears when opening a Linux shell?

Question

How to remove the following message:

To run a command as administrator (user "root"), use "sudo ". See "man sudo_root" for details.

Every time I open a Terminal it appears. I upgraded from Ubuntu 14.04 LTS to 16.04 LTS and it seems that update made that.

I am using bash.

Answer 1

Execute the below command and close the terminal. The message will be remove from the terminal.

sudo apt-get update

Answer 2

atleast my ubuntu 14.04 machine will display(or run) all the script in /etc/update-motd.d(motd => message of the day) directory.

ll /etc/update-motd.d/
total 40
drwxr-xr-x   2 root root 4096 Sep 27  2014 ./
drwxr-xr-x 109 root root 4096 Nov 30 10:27 ../
-rwxr-xr-x   1 root root 1220 Feb 20  2014 00-header*
-rwxr-xr-x   1 root root 1358 Feb 20  2014 10-help-text*
lrwxrwxrwx   1 root root   46 Sep 27  2014 50-landscape-sysinfo -> /usr/share/landscape/landscape-sysinfo.wrapper*
-rwxr-xr-x   1 root root  334 Sep 27  2014 51-cloudguest*
-rwxr-xr-x   1 root root  149 Aug 22  2011 90-updates-available*
-rwxr-xr-x   1 root root  299 Aug 21  2014 91-release-upgrade*
-rwxr-xr-x   1 root root  111 Mar 27  2014 97-overlayroot*
-rwxr-xr-x   1 root root  142 Aug 22  2011 98-fsck-at-reboot*
-rwxr-xr-x   1 root root  144 Aug 22  2011 98-reboot-required*

The scipt with lowest number is gonna execute first 00-header*

Answer 3

I googled that and found this command:

$ touch ~/.hushlogin