之间是否有任何差异 * / 5 * * * *< COMMAND>
和
0/5 * * * *< COMMAND>?
解决方案<- 每隔5分钟执行一次, >
- 第二个将在分钟0,5,10,... 55执行。
只有第一次在第5分钟执行第一次,他们将有相同的行为。
每5分钟可写成这样:
0,5,10,15,20,25,30,35,40,45 ,50,55 * * * *< COMMAND>此
0/5 * * * *< COMMAND>或
* / 5 * * * *< COMMAND>无论如何,最后一个将开始任何时间的分钟变化,然后保持5分钟到下一个距离
$ / strong>。如果是单独的,它将意味着每分钟,每小时等。/ 字符可用于指定值的增量。如果我们表示 X / Y ,则表示从第X分钟开始每隔Y分钟。
- 0/15 = 每小时第15分钟,从分钟零开始 = 0,15,30,45
- 3/20 = 每20分钟小时,从第三分钟开始 = 3,23,43
- / 40 = 每小时的第40分钟 = 40
- 3/40 = 每小时第40分钟,从第三分钟开始 = 43 $回到你的问题,两个运算符的使用得到以下结果:
- CronTrigger
- Linuxcrontab every示例
- The first one will be executed every 5 minutes starting any moment, while
- the second one will be executed on minutes 0, 5, 10,... 55.
- 0/15 = every 15th minute of the hour, starting at minute zero = 0,15,30,45
- 3/20 = every 20th minute of the hour, starting at minute three = 3,23,43
- /40 = every 40th minute of the hour= 40
- 3/40 = every 40th minute of the hour, starting at minute three= 43
- CronTrigger
- Linux "crontab every" examples
code> * / 5 =每5分钟开始一次。这样,每当更改分钟时,它将启动,并在5分钟,10等之后重复。
0/5 =每5分钟从分钟0开始。它将在内部考虑为:0,5,10,15,20,25,30,35,40,45,50,55,因为这些是适合条件<
有些参考资料:
Is there any diffenrence between
*/5 * * * * <COMMAND>and
0/5 * * * * <COMMAND>?
解决方案It is not the same.
Only if the first one is executed on minute 5k for the first time, they will have the same behaviour.
Every 5 minutes can be written like this:
0,5,10,15,20,25,30,35,40,45,50,55 * * * * <COMMAND>this
0/5 * * * * <COMMAND>or
*/5 * * * * <COMMAND>Anyway, last one will start any time the minute changes and then keep a distance of 5 minutes to next execution.
The * character means every. If it is alone, it will mean every minute, every hour, etc.
The / character can be used to specify increments to values. If we indicate X/Y it means every Y minutes starting at minute X.
Coming back to your question, the use of both operators gets the following result:
*/5 = every 5 minutes starting anytime. This way, it will start whenever changes the minute and repeat after 5 minutes, 10, etc.
0/5 = every 5 minutes starting on minute 0. It will be internally considered as: 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 as these are the minutes that suit the condition +5 minutes coming from start at minute 0.
Some references:
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这些cron表达式是否等同?
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