htop - htop - an interactive process viewer for Unix. This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release: htop 2.
KSysGuard - Track and control the processes running in your system.
GNOME System Monitor - System Monitor is a tool to manage running processes and monitor system resources.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Glances - The single customer view you have always wanted is here. Unify your apps in an easy-to-use customer view that provides real-time data from within any app that you are using. In minutes, securely connect your apps and eliminate tab switching.
Iotop - Iotop's homepage