There are multiple issues with it:
* [ ] The most obvious and common date format, `YYYY-DD-MM` is not supported.
* [ ] Possibility that systemctl output has no "Status" ..." line is not handled, leading to runtime errors
* [ ] There is no way to check if shutdown is scheduled without also printing that data
* [ ] Many messages are confusing and/or ungrammatical
* [ ] `show reboot` and `show poweroff` still call the old script