Cron Tab syntax :-
A crontab file has five fields for specifying day , date and time followed by
the command to be run at that interval.
* * * * * command to be executed | | | | | | | | | +---- day of week (0{$_SERVER['DOCUMENT_ROOT']}/sickingfamily/-6) (Sunday=0) | | | | | | | +---- month (1-12) | | | | | +---- day of month (1-31) | | | +---- hour (0-23) | +----min (0-59)
* in the value field above means all...
legal values as in braces for that column.
The value column can have a * or a list of elements separated by commas. An
element is either a number in the ranges shown above or two numbers in the range
separated by a hyphen (meaning an inclusive range).
Note: The specification of days can be made in two fields: month day and
weekday. If both are specified in an entry, they are cumulative meaning both of
the entries will get executed .