From my understanding, jobs are pipelines (http://web.mit.edu/gnu/doc/html/features_5.html) started from a certain shell and you can manage these jobs (fg, bg, ctrl-z) from within this shell. A job can consist of multiple processes/commands.My question is what happens to these jobs when the original, containing shell exits?Suppose huponexit is not set so background processes keep running after the shell exits.Suppose I have done:run.sh | grep 'abc' &[1] job_idThen I exit this shell. I'll enter a new shell and run jobs and see nothing obviously. But I can do ps aux | grep run.sh and see this process running and I'll also do ps aux | grep grep and see the process for grep 'abc' running too.Is there a way to just get the job ID for the full pipeline so that I can kill it in one go, or do I have to kill all the processes separately from another shell once I have exited the original shell? ( I have tried the latter and it works, but it seems like a hassle to keep track of all the processes. )
What happens to background jobs after exiting the shell?
shell;process;kill;jobs