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How do you run a cron job every minute only on specific hours? Like so:
It will only check every minute from 11AM to 12AM, 4PM to 5PM and 9PM to 10PM
It seems to be complicated to me I don't know where to start.
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Execute Cron Job After System Reboot. Setup and Run PHP Script As A Cron Job. Run crontab job every minute on a Linux or Unix-like system.
You can set the cron for every three hours as: 0 */3 * * * your command here ..
basic 3. /usr/bin/vim. tiny 4. /bin/ed Choose 1-4 [1]: Make a new line at the bottom of this file and insert the following code. Of course, replace our example script with the command or script you wish to execute, but keep the */5 * * * * part as that is what tells cron to execute our job every 5 minutes.
Right solution:
* 11,16,21 * * * Because if you use previous solution:
0-59 11-12,16-17,21-22 * * * * Job will start at 12:40 or 17:59. It is not in range from 11AM to 12AM, 4PM to 5PM and 9PM to 10PM.
UPDATE:
Traditional (inherited from Unix) cron format consists of five fields separated by white spaces:
* * * * * command to be executed ┬ ┬ ┬ ┬ ┬ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └───── day of week (0 - 6) (0 is Sunday, or use names) │ │ │ └────────── month (1 - 12) │ │ └─────────────── day of month (1 - 31) │ └──────────────────── hour (0 - 23) └───────────────────────── min (0 - 59) nnCron can use both traditional and "enhanced" version of cron format, which has an additional (6th) field: Year.
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As per the cron format
<Minute> <Hour> <Day_of_the_Month> <Month_of_the_Year> <Day_of_the_Week> <Year> * * * * * * | | | | | | | | | | | +-- Year (range: 1900-3000) | | | | +---- Day of the Week (range: 1-7, 1 standing for Monday) | | | +------ Month of the Year (range: 1-12) | | +-------- Day of the Month (range: 1-31) | +---------- Hour (range: 0-23) +------------ Minute (range: 0-59) the solution should be
* 11,16,21 * * * * If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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