如何设置cron在未来的特定时间只运行一次文件？ [英] How to setup cron to run a file just once at a specific time in future?

问题描述

如何设置cron在未来的特定时间只运行一次文件？其中一个选择是 http://en.wikipedia.org/wiki/At_%28Unix%29 但到目前为止，所有用户都无法访问标准托管计划。因此，我想知道是否有办法使用 cron ？

How to setup cron to run a file just once at a specific time in future? One of the alternatives is http://en.wikipedia.org/wiki/At_%28Unix%29 but it is by far not accessible to all users on standard hosting plans. Therefore I was wondering whether there is way to do it using cron?

推荐答案

请于2011年3月30日午夜执行命令：

Try this out to execute a command on 30th March 2011 at midnight:

0 0 30 3 ? 2011  /command

警告：如注释中所述，年列在cron的标准/默认实施中不受支持。请参考下面的TomOnTime答案，以便在将来在cron的标准实现中的特定时间运行脚本的正确方法。

WARNING: As noted in comments, the year column is not supported in standard/default implementations of cron. Please refer to TomOnTime answer below, for a proper way to run a script at a specific time in the future in standard implementations of cron.

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