Fkill (Fabulous Kill) is a free and open source command-line processes killer application for linux, macOS and Windows. Using this tool you can kill the running system process interactively and easily. You can input one or more process IDs, names, ports to kill. You can also search the running process. It is released under MIT License and based on Nodejs.
Install fkill on Ubuntu
fkill is available as snap package for Ubuntu . You can easily install it via terminal. Open the terminal app (ctrl+alt+t) and run below commands to install and configure fkill.
sudo snap install fkill
sudo snap connect fkill:process-control :process-control
sudo snap connect fkill:system-observe :system-observe
Then run fkill via below command.
Just use the arrow keys or directly type to search the process and press enter to kill it.
You can also install it via npm. First install nodejs using below link.
How to install Node.js and npm using NVM on Ubuntu
Restart your system and run below command.
npm install fkill