特殊cron表达式：如何使异常？

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我让cron每天凌晨3:50执行一个任务，除了一个星期二与这个月的第一天相符：

I made a cron to execute a task every tuesday at 3:50 AM - except a tuesday which coincides with the first day of the month:

50 3 * * 2 MyCommand

但我不知道

推荐答案

你可以在你的脚本中添加一个条件语句吗？我会这样做。

Can you put a conditional in your script? I would do that. And in your cron you can comment that it won't run on the first per your script directions

例如，在bash中你可以这样做：

As an example, in bash you can do this:

#!/bin/bash dayofmonth=`date +"%d"` if [ $dayofmonth == "01" ]; then # do not run, exit exit fi # otherwise go on echo "it is not the first"

因此，您的cron将是

So your cron would be

30 5 * * 2 /path/to/script # comment: script conditional in place to not run on the 1st