I have a peculiar problem. My server supports multiple ssh session simultaneously, so that multiple admins can manage it simultaneously.
We have a command which calls ztail
to show the compressed log files and when the current ssh session is closed (without pressing ctrlc, to stop the tail
command), the command should ideally stop working.
But what I observed when I start a new ssh session is that the process ztail
is still running in the background and consuming CPU, even though the previous session was closed.
How can I determine when the session is closed, so that I can use that variable/flag to close/stop any commands initiated by that previously closed session?
Best Answer
You don't say what is the command that you run in your
ssh
session and in turn invokes ztail, nor whether this command keeps running or not.When you close the session, that command receives a
SIGHUP
signal, and should then dispose ofztail
.