Installing Nagios Plugins for Ubuntu 14.04 Trusty
Hi! The Tutorial shows you Step-by-Step How to Install Nagios 4 Plugins on Ubuntu 14.04 Trusty Tahr LTS i386/amd64 Linux Desktop/Server.
The Nagios Plugins allow you to monitor hosts, devices, services, protocols, and applications with Nagios.

How to Install Nagios Core for Ubuntu
Open a Command Line Shell Session
Ctrl+Alt+t on Desktop
(Press “Enter” to Execute Commands)Download Latest Nagios Plugins Linux Source
Extracting Nagios Plugins.
Or from Command Line:
tar zxvf ~/Downloads/nagios-plugins*.tar.gz -C /tmp/
Compiling and Installing Nagios Plugins on Ubuntu.
cd /tmp/nagios-plugins*
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
sudo make install