shutdown script?

[Nachteule]

I do not know if there is a already a standard procedure for shutdown (IMO not).

But, one way could be writing an upstart script which will be started on shutdown, reboot or both

cat /etc/init/down.conf

Code:

# Does anything at shutdown

# Only on shutdown
start on runlevel [0]
# Shutdown and reboot
#start on runlevel [06]

script
    # Do what you want here
    echo "Shutdown" >> var/log/shutdown.log
end script