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:

htop 

(apt-get 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