saidar utilizes libstatgrab library. libstatgrab is a library that provides cross platform access to statistics about the system on which it's run. It's written in C and presents a selection of useful interfaces which can be used to access key system statistics. The current list of statistics includes CPU usage, memory utilisation, disk usage, process counts, network traffic, disk I/O, and more.
The current list of platforms is Solaris 2.x, Linux 2.2/2.4/2.6, FreeBSD 4.x/5.x, NetBSD 1.6.x, OpenBSD 3.x, DragonFly BSD 1.0, HP-UX, and Cygwin. The aim is to extend this to include as many operating systems as possible.
Install Saidar in ubuntu
sudo apt-get install saidar
This will complete the installation
saidar [-d delay] [-v] [-h]
If you want to use this application you can just type the following command
Now you should see the following screen which includes system statistics include CPU, processes, load, memory, swap,
network I/O and disks I/O along with their free space.
If you want to know more information and available options check saidar man page