Re: At wits end... need to execute a script prior to anything getting killed/changed on reboot/shutdown

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On 1/17/19 11:01 AM, Lennart Poettering wrote:
On Do, 17.01.19 10:18, Christopher Cox (ccox@xxxxxxxxxxxxxx) wrote:

On 1/17/19 5:50 AM, Lennart Poettering wrote:
With that you can now put together a unit that is terminated
relatively early on during shutdown: just make it
"After=multi-user.target graphical.target default.target", so that it
gets activated at boot very late, and thus deactivated at shutdown
very early.
Thanks, I think I had this on one of my many attempts.  But changed to suit.

[Unit]
Description=my-service-save save run state
After=multi-user.target graphical.target default.target

[Service]
Type=oneshot
ExecStop=/usr/local/bin/my-services.sh save
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

In my case, my script rolls through the currently running processes, looking
for certain ones, determines listening port (ss) and gets the time the
process was started (stat) and outputs info to a file.

What I'm seeing is a file at shutdown that does not contain all the
processes.
Hmm, what kind of processes are you missing? user session stuff? How
do you shut down? Note that display managers are likely to terminate
the user sessions first, and only initiate system shutdown then...

These are nohup'd background processes not tied to any tty.


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