SIGKILL is never received by an application, I believe SIGSTOP isn't either. Both of them are calls to the kernel for managing a process, and SIGKILL should be

SIGKILL is never received by an application, I believe SIGSTOP isn't either. Both of them are calls to the kernel for managing a process, and SIGKILL should be reserved for extrenuating circumstances (an application won't quit normally...). SIGKILL gives no application a chance to clean itself up, shell script or no. This is hardly a special feature of Bash, it's just how the operating system works.