htop and glances interactive process viewers for Linux Servers.

This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses.
I am using this brilliant app for monitoring my servers and Raspberry Pi. Download

I recommend use PyPi:

pip install Glances

Glances – “An Eye on your system”
Glances is a cross-platform system monitoring tool. Written in Python, Glances will run on almost any platform : GNU/Linux, FreeBSD, OS X and Windows.
Install:

$ wget -O- http://bit.ly/glances | /bin/bash

You can enable many useful plugins using the following command.

$ sudo pip install glances[action,browser,cloud,cpuinfo,chart,docker,export,folders,gpu,ip,raid,snmp,web,wifi]

or with python3

$ sudo pip3 install glances[action,browser,cloud,cpuinfo,chart,docker,export,folders,gpu,ip,raid,snmp,web,wifi]

Configuration file options:


Ncdu is also a brilliant command line disk usage analyzer with an ncurses interface.
dev.yorhel.nl/ncdu

$ sudo apt-get install ncdu