Question

how to make cron job every day at 6 O’clock by Cpanel ?
I added cron job by my cpanel as this picture

https://i.stack.imgur.com/5esAq.jpg

But the script work more one time in the day , I need to know the error in cron or in my script .

Answer 1

Your cron will run every minute at 6 o’clock, because of that asterisk.

Cron format:

* * * * * *
| | | | | | 
| | | | | +-- 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)
Any of these 6 fields may be an asterisk (*). 
This would mean the entire range of possible values, i.e. each minute, each hour, etc.

You should put minute 0 because you need to run it just once (at 06:00).

0 6 * * *