How to kill all processes matching a name?

Question

Say I want to kill every process containing the word amarok. I can print out the commands I want to execute. But how do I actually make the shell execute them. ie.

Answer 1

Maybe adding the commands to executable file, setting +x permission and then executing?

ps aux | grep -ie amarok | awk '{print "kill -9 " $2}' > pk;chmod +x pk;./pk;rm pk