----------
				      CRON 
				   ----------

	#
	# minute hour day month dayofweek command
	#

[root@w0lf /]# crontab -e

# run script at 23:59 weekdays
59 23 * * 1-5 /Setup/script

# run script at 20:30 Mondays
30 20 * * 1 /Setup/script

# run script at 20:30 Mondays 
30 20 * */3 1 /Setup/script
         ^
         |----Every third month 


# Baclup MySQL DB (23:59 monday-friday)
59 23 * * 1-5 /usr/local/mysql/bin/mysqldump -u user -pPASWORD --databases database3 > /backup-cron-database3.sql