4 Ways to Kill a Process – kill, killall, pkill, xkill: "Kill command is use to send signal to a process or to kill a process. We typically use kill -SIGNAL PID, where you know the PID of the process.
There are other ways to effectively kill a process — killing a process by name, killing a process by specifying part of the name, killing a process by pointing out the process with cursor etc.,"
