Re: a problem on crontab time format

Le dimanche 23 janvier, Camaleón écrivit :

On Sun, 23 Jan 2011 00:14:01 -0500, Kejia柯嘉 wrote:

On Sun, Jan 23, 2011 at 12:11 AM, Kejia柯嘉 wrote:
Hi people,

How does the following crontab line run: * 1 * * * * my_command
Every minute of every 1 o'clock? Or only once of every 1 o'clock?

Sorry, the crontab line is:
* 1 * * * my_command

It will run "my_command" (just once) every day at 01:00 am o'clock.

No, for what you want, you should use :
0 1 * * * my_command

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