cron job concept

Basic Linux Crontab Format

     MIN HOUR DOM MON DOW CMD

Field	Description	Allowed Value
MIN	Minute field	0 to 59
HOUR	Hour field	0 to 23
DOM	Day of Month	1-31
MON	Month field	1-12
DOW	Day Of Week	0-6
CMD	Command	Any command to be executed.

Schedule cron job every five minute

*/5 * * * *  curl "CALLED_URL" 

Schedule cron job every week minute 

*/5 * * * *  curl "CALLED_URL"