cron jobs – Example

cron  is a time-based scheduling service in Linux / Unix-like computer operating systems.
========================================================================================
$ crontab -u (username) -e

=======================

# +—————- minute (0 – 59)# |  +————- hour (0 – 23)# |  |  +———- day of month (1 – 31)# |  |  |  +——- month (1 – 12)# |  |  |  |  +—- day of week (0 – 6) (Sunday=0 or 7)# |  |  |  |  |

*  *  *  *  *  command to be executed=============================Minute :

* = every minute

*/5 = after every five minutes

15 = After 15 minutes

Hour :

0 = midnight

4 = 4 AM

23 = 11 PM

Day  :

1 = 1st day of the month

5 = 5th day of the month

31 = 31st day of the month

Month :

1 = Month of the year (January = 1 , February = 2 and so on … )

Weekday :

0 = Day of the week (Sunday = 0, Monday = 1, Tuesday = 2 and so on …)

Cron Job examples :

If you want a cron job to run at 5:00 and 10:00 A.M then you can set it like:

Code:

* 5,10 * * *  /usr/local/bin/php -q /home/cpanelusername/public_html/path of your cron file

If you want to set the cron job every day at midnight then it would be like:
Code:

0 0 * * * /usr/local/bin/php -q /home/cpanelusername/public_html/path of your cron file

Similarly ,

If you want to set the cron job from Monday to Friday at midnight then it would be like:
Code:

0 0 * * 1,2,3,4,5 /usr/local/bin/php -q /home/cpanelusername/public_html/path of your cron file

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