Dynamic real-time view of processes:
top
Search processes by name:
pgrep name_of_the_process
List processes by user:
ps -u username
Scroll the process list vertically and horizontally and search & kill processes:
htop
(apt install htop)
kill -9 name_of_the_process
Kill process by name without allowing process to do cleanup or restart
killall -9 PID
Kill process by PID without allowing process to do cleanup or restart