maciejzasada/grunt-gae — pull request #4 by Gubbi (2013-12-12 15:59:50+00:00)
Title: KILL action does not work

The file name given for the rm command has a typo and the $(< .grunt-gae-pid) doesn't work within exec.

Instead the following COMMAND_KILL value fixed the issue:
kill `cat .grunt-gae-pid` && rm -rf .grunt-gae-pid