Fork child process to die when parent exits? (bash)

Question

I'm working with parallel processing and rather than dealing with cvars and locks I've found it's much easier to run a few commands in a shell script in sequence to avoid race conditions in one place. The new problem is that one of these commands calls another program, which the OS has decided to put into a new process. I need to kill this process from the parent program, but the parent program only knows the pid of the parent (shell script), so this process keeps executing on its own.

Is there a way in bash to set a subprocess to die when the parent dies? I've tried to figure out how to execute it as a daemon because I read daemons exit when the parent dies, but it's tricky and I can't quite get it right. Thanks!

Answer 1

找到了问题，并解决了此问题（除了一些讨厌的消息，它们以某种方式无法重定向到/ dev / null）。

trap "trap - SIGTERM && kill -- -$$" SIGINT SIGTERM EXIT