I am making some changes to the moreutils sponge command. Sponge provides a method of prepending which is less specialized than my prepend util. However, it has trouble with large amounts of input.

Regardless, while testing my changes, I want to watch it operate. Normally, you would just do so <a href="http://bashcurescancer.com/using-kill-to-see-if-a-process-is-alive.html">…