Added the shutdown with slack command

[meman0303]

I added the script and set the new env variable

[jake-molnia]

I like this but we should make this a systemd service:

Description=Sending Slack before shutdown.
Requires=network.target
Before=shutdown.target reboot.target

[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/true
ExecStop=/Scripts/<name> shutdown

[Install]
WantedBy=multi-user.target

[jake-molnia]

can we setup and test something like this - that way we dont have to trust someone else will use our script!