Even though cron is our usual lifesaver for redundant tasks on a Unix or Linux Systems, there are times that we really forget the syntax that is needed for our cronjobs. Here is a simple yet effective headers that we could place on top of the crontab as comments:
############################################################### #.---------------- minute (0 - 59) #| .------------- hour (0 - 23) #| | .---------- day of month (1 - 31) #| | | .------- month (1 - 12) OR jan,feb,mar,apr ... #| | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR #| | | | | sun,mon,tue,wed,thu,fri,sat #| | | | | * * * * * command to be executed