title: killall on process of same name
body: <p>I would like to use killall on a process of the same name from which killall will be executed without killing the process spawning the killall.</p>
  
  <p>So in more detail, say I have process foo, and process foo is running.  I want to be able to run "foo -k", and have the new foo kill the old foo, without killing itself.</p>