Kill all my processes! muhahaha!

Hi all,

This is an interesting command line a friend of mine wrote, I'm posting it here because its handy for killing database processes that are spinning and you can't sort it out nicely:

ps -ef |grep [someprocesseswiththesamename]|grep -Po "^\w+\s+\d+"| grep -Po "\d+"| sed "s/^/|kill -9 /" |sh

Say you have 50 apache2 services and apache is playing up so you want to kill all of them. (An example only...). You would do this:

ps -ef| grep apache2 |grep -Po "^\w+\s+\d+"|grep -Po "\d+"|sed "s/^/kill -9 /"|sh

Quick description:

ps -ef : List processes

grep apache2: Chops down the ps -ef to only show lines with apache2 in

grep -Po "^\w+\s+\d+" : Display just the name and PID

grep -Po "\d+" :Display just the PID

sed "s/^/kill -9 /" :build the command line, replaces the beginning of line char with "kill -9" the PID from the previous line gets appended.

sh: Pipe all that lot to the shell

Thanks for reading,

Trev