Not really a single command, it's a one-liner - a pipeline, but might be interesting, not only for the one-liner but for the comments about Unix processes that

Not really a single command, it's a one-liner - a pipeline, but might be interesting, not only for the one-liner but for the comments about Unix processes that ensued on my blog: UNIX one-liner to kill a hanging Firefox process: https://jugad2.blogspot.in/2008/09/unix-one-liner-to-kill-hanging-firefox.html https://jugad2.blogspot.in/2008/09/unix-one-liner-to-kill-ha...