# m h  dom mon dow   command
 
# MIN HOUR MDAY MON DOW COMMAND
 
Code:
MIN = Minute 0-60 HOUR = Hour [24-hour clock] 0-23
MDAY = Day of Month 1-31 
MON = Month 1-12 OR jan,feb,mar,apr ... 
DOW = Day of Week 0-6 OR sun,mon,tue,wed,thu,fri,sat COMMAND = Command to be run Any valid command-line
 
@reboot Run once, at startup. None
 
@yearly Run once a year 0 0 1 1 *
 
@annually (same as @yearly) 0 0 1 1 *
 
@monthly Run once a month 0 0 1 * *
 
@weekly Run once a week 0 0 * * 0
 
@daily Run once a day 0 0 * * *
 
@midnight (same as @daily) 0 0 * * *
 
@hourly Run once an hour 0 * * * *