每六个小时在Linux上运行一次cron作业 [英] Running a cron job on Linux every six hours

问题描述

如何每天每六个小时运行一次命令？

How can I run command every six hours every day?

我尝试了以下操作，但没有用：

I tried the following, but it did not work:

/6 * * * * *  mycommand

推荐答案

您忘记了 * ，并且您有太多字段。这是您需要关心的时刻

You forgot a *, and you've too many fields. It's the hour you need to care about

0 */6 * * * /path/to/mycommand

这意味着每6小时从0开始，即您可以写为0、6、12和18的时间

This means every sixth hour starting from 0, i.e. at hour 0, 6, 12 and 18 which you could write as

0 0,6,12,18 * * * /path/to/mycommand

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