Hi, http://hackage.haskell.org/package/process-1.2.0.0/docs/System-Process.html#... says: " Note: on Windows, if the process was a shell command created by createProcess with shell, or created by runCommand or runInteractiveCommand, then terminateProcess will only terminate the shell, not the command itself. On Unix systems, both processes are in a process group and will be terminated together. " I don't see that happening, at least not in ghci. When I do import System.Process (_,_,_,p) <- createProcess $ (shell "sleep 10") -- wait a second or so terminateProcess p in ghci, then in `ps aux | grep "sleep 10"`, the sleep is still running; same when I'm using `(shell "sleep 10"){ create_group = True }` (`shell` defaults to `create_group = False`). What am I missing?