Are the following cron
configurations identical?
* * * * *
0 * * * *
1 * * * *
I'm looking for a configuration that will run the job every minute.
No.
The last two will run hourly. One at the 0 minute of every hour and the other at the 1st minute of every hour. But an all asterisk cron input means the cron job will run every minute of every day of every of every month on every weekday.
Cron's syntax specifies that an asterisk matches every possible value.
So if your "minute" column has an asterisk, that means, "run the job every minute".
If the column has a "0" or "1", that means it will run only once per hour, either at (for example) 15:00 or 15:01.
0 * * * *
might be every second? I can't test this on a shared server so I have to ask here. I am a Windows user.