Kill multiple processes using awk command

If you wish to kill multiple instances manually executed in background or the running processes of crontab then you can kill them all without taking the headache of selecting process id of each process and giving command "kill -9 process id", so this command can do magic for you

ps -ef | grep "username or process name" | grep -v grep | awk '{ print $2 }' | xargs kill -9

This command will first check running process with specific username or process name than "grep -v grep" will exclude the row which contain the word grep in it after that awk command prints the second column of process id's and "xargs kill -9" will kill all the returned process id's associated with it.

Author:
Waqas Rafi