如何获取一个unix脚本运行每15秒？ [英] How to get a unix script to run every 15 seconds?

问题描述

我已经看过一些解决方案，包括观看和简单地在后台运行一个循环（和睡觉）脚本，但没有什么是理想的。

一个需要每15秒运行一次的脚本，而且因为cron不支持秒，我还是想找出别的东西。

最强大和高效的方法在unix上每15秒运行一个脚本？

解决方案

我会使用cron每分钟运行一个脚本，

（假设您的脚本运行速度快 - 如果没有，您可以调整睡眠时间。）

这样，你就可以得到 cron 的所有好处以及15秒的运行时间。

修改：另请参阅以下@ bmb的注释。

I've seen a few solutions, including watch and simply running a looping (and sleeping) script in the background, but nothing has been ideal.

I have a script that needs to run every 15 seconds, and since cron won't support seconds, I'm left to figuring out something else.

What's the most robust and efficient way to run a script every 15 seconds on unix? The script needs to also run after a reboot.

解决方案

I would use cron to run a script every minute, and make that script run your script four times with a 15-second sleep between runs.

(That assumes your script is quick to run - you could adjust the sleep times if not.)

That way, you get all the benefits of cron as well as your 15 second run period.

Edit: See also @bmb's comment below.

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