How to install htop on Ubuntu – Interactive Process Viewer and System Monitor
htop is a free and open source interactive process viewer and system monitor app for Linux. Using this text based command line system monitor app you can manage your system process easily. It supports mouse operation and vertical and horizontal scrolling. It shows full list of your system process. Using htop you can kill multiple processes at once without typing the process number. It uses different colors codes in its output. It is released under GNU General Public License, version 2.