https://github.com/ffes/rebootat
Reboot Windows at a given time
https://github.com/ffes/rebootat
reboot schedule windows
Last synced: 2 months ago
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Reboot Windows at a given time
- Host: GitHub
- URL: https://github.com/ffes/rebootat
- Owner: ffes
- License: gpl-2.0
- Created: 2023-08-31T19:22:35.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-02-01T06:54:49.000Z (over 1 year ago)
- Last Synced: 2025-01-24T21:14:28.026Z (4 months ago)
- Topics: reboot, schedule, windows
- Language: C++
- Homepage:
- Size: 25.4 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
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README
# RebootAt
## Introduction
For years I have installed [Cygwin](https://cygwin.com) on basically all my machines.
But with the introduction of WSL and especially WSL2 I stopped using it.
One of the Cygwin tools I used often on our servers at the office was the `shutdown` command.
Yes, Windows has a pretty decent `shutdown.exe` but the major advantage of the Cygwin `shutdown` is that it mimics the Linux `shutdown` command, especially the possibility to add a timestamp at the end.
And another minor disadvantage of `shutdown.exe` is that when you use the wrong command line options you could shutdown the machine instead of rebooting it.
```sh
shutdown -fri 23:30
```
This will forcefully reboot the machine and install the pending updates at 23:30.
The program will calculate the number of seconds between the moment of invocation and the requested time and pass that to the `InitiateShutdown()` Win32 API.
Every month I miss this functionality.
When you need to install the regular Windows updates on a number of servers, you want to reboot them at a moment it has the least impact for the users.
And you don't want to calculate that number of seconds.
And I don't want to have to go through the hassle of setting up a one-time Scheduled Task.
A command line tool is much easier.
I have maintained the [sources of Cygwin shutdown](https://github.com/cygwin/shutdown) for some time, so I took that as an inspiration for this tool.
And since some of the code has been reused, I will obviously release this with the GPL2 license as well.
## Usage
This command line tool reboots you machine at a given time.
The tool takes just one argument, a timestamp when the computer needs to reboot.
The word `now` (case insensitive) means just that, reboot immediately.
```sh
# Reboot immediately
RebootAt now
```
A timestamp means to reboot at the first time this time will occur.
The timestamp has to be in 24-hours notation.
```sh
# Reboot today at 23:30
RebootAt 23:30
# Reboot tomorrow at 2:00
RebootAt 2:00
```
`+` means the number following is in minutes.
```sh
# Reboot in 60 minutes
RebootAt +60
```