saidar is a curses-based application to display system statistics. Statistics include CPU, processes, load, memory, swap, network I/O and disks I/O along with their free space.saidar utilizes libstatgrab library.
Installing Saidar in Debian
#apt-get install saidar
This will complete the saidar installation. Now if you want to run the saidar just enter the following command
As you can see from the screenshot, you can easily get an overview of your system state as well as your hardware.
If you want more information how to use saidar check man page