need help for cron

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1

i want to run a php file under cron after 25 OR 30 seconds.
how can i setup that.

Thanks

2

What do you mean by after 25 or 30 seconds?

Cron’s (and at’s) resolution is only to the minute.

3

The following command will run after 1 min.if i am not mistaken:
*/1 * * * *
Is it possible to divide the min and run it after 30sec.

4

You could sleep for 30 seconds and then run the job.