What do I need to put in the
[install] section, so that systemd runs
/home/me/so.pl right before shutdown and also before
/proc/self/net/dev gets destroyed?
[Unit] Description=Log Traffic [Service] ExecStart=/home/me/so.pl [Install] ?
The suggested solution is to run the service unit as a normal service - have a look at the
[Install] section. So everything has to be thought reverse, dependencies too. Because the shutdown order is the reverse startup order. That's why the script has to be placed in
The following solution is working for me:
[Unit] Description=... [Service] Type=oneshot RemainAfterExit=true ExecStop=<your script/program> [Install] WantedBy=multi-user.target
RemainAfterExit=true is needed when you don't have an
After creating the file, make sure to
systemctl daemon-reload and
systemctl enable yourservice --now.
I just got it from systemd IRC, credits are going to mezcalero.
I am not totally sure but i don't think you need the install part though i added it explicitly. I also didn't test it but i think it should help you get started:
[Unit] Description=Log Traffic Requires=network.target After=network.target Before=shutdown.target DefaultDependencies=no [Service] ExecStart=/home/me/so.pl Type=oneshot RemainAfterExit=yes [Install] WantedBy=shutdown.target
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