I want to spawn a process and run it at the top level so that when the shell exits, the process keeps running.
I had mistakenly thought that nohup would do this, but when I exit from the shell (the shell is a lxc container and I ssh into that) and re-enter, the process is gone.
It seems (looking at pstree) that the process is still under the invoking shell even with nohup or disown.
I tried a few options and setsid seems to work - but am I doing something wrong with nohup here ?
$ cat myproc sleep 1234 $ myproc & $ pstree -a | grep -B 3 "1234" | grep -v grep |-screen | |-bash -ls | | |-bash -ls | | | `-sleep 1234 $ nohup myproc & $ pstree |-screen | |-bash -ls | | |-pstree -a | | `-sh ./myproc | | `-sleep 1234 $ myproc & $ disown $! $ pstree -a | grep -B 3 "1234" | grep -v grep |-screen | |-bash -ls | | |-bash -ls | | | `-sleep 1234 $ setsid myproc & |-sh ./myproc | `-sleep 1234
success. But why did nohup not achieve the same? Is there a way to use nohup more correctly?