How do I run a command at a certain time of day (IRL)?

Question

I need to find a plugin or rig up some command blocks that will run console commands at specific times a day.  The most basic need is for the /restart command, but I also have world edit commands I want to run on some schedules too.
I have a spigot server on 1.15.2, command blocks, placeholderAPI with the localtime extension, and the ability to install other plugins of course.
How can I make this happen?

bionicdude · Answer

I have my server running inside a screen session.
I can then use cron (or anything else, for that matter) to send commands to that screen session.
As an example, here's how i broadcast that i'm about to shut down the server. Adjust the command to your taste
/usr/bin/screen -p 0 -S ftb -X eval 'stuff "say SERVER SHUTTING DOWN. Saving map..."15'

-p lets you select which window to attach to.
-S lets you select a named session to attach to.
-X is the command you want to send

look here for more info on the screen command if you need it
Hopefully that'll let you do what you need.
edit:foolishly, i assumed you were using linux...simply because i am.

How do I run a command at a certain time of day (IRL)?

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