如何在特定时间段内激活cron命令一次？ [英] How do i activate cron command once within specific time frame?

问题描述

我的系统的基本信息：我有一个音乐系统，人们可以安排歌曲在特定时间开始和结束。

Basic information about my system: I have a music system where people can schedule songs to start and end at a specific time.

操作系统：Arch linux

OS: Arch linux

此时设置两个cron。一个人可以说在1.50（开始时间使用play etc等命令），另一个设置为3.20（结束时间使用命令end etc）。

It sets two crons at the moment. One lets say at 1.50 (start time with a command like "play etc") and another set at 3.20 (end time with a command like "end etc").

我的安装工作完美，我可以结束删除日程表等，但我现在注意到一个问题！如果我设置以上的时间，并关闭系统（我的系统是一个树莓派），并让我们说2.00和我错过了1.50的截止日期，音乐不启动（显然），我想尝试使它没有什么时候我打开它在一个范围内让我们说：1.50 - 3.20它将启动播放命令。但它会运行命令一次！

My setup works perfectly and i can end delete schedules etc etc but i now noticed an issue! If i set the above times and turn the system off (My system is a raspberry pi) and turn back on at lets say 2.00 and i missed the 1.50 deadline, the music doesnt start (obviously) and i want to try make it so no matter what time i turn it on within a range lets say: 1.50 - 3.20 it will start the play command. But it will run the command once!

我环顾四周，我得到的命令是：

I looked around and the commands i got was like:

0 1.50-3.20/2 * * * your_command.sh

每2小时运行一次。我希望它只在这些时间之间运行一次？
感谢！

But thats to run every 2 hours. I want it to run once only between these times? Thanks!

推荐答案

我通过创建一个PHP文件并在重新启动时加载页面来解决这个问题，并重定向回到这样的等。

I solved the issue by creating a PHP file and load the page on reboot then do its work and redirect back to such and such.

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