Description: similar to bind TIME, but the mask is evaluated as a cron expression, e.g. “16/2 */2 5-15 7,8,9 4”. It can contain up to five fields: minute, hour, day, month, weekday; delimited by whitespace. Week days are represented as 0-6, where Sunday can be either 0 or 7. Symbolic names are not supported. The bind will be triggered if the mask matches all of the fields, except that if both day and weekday are not ‘*’, only one of them is required to match. If any number of fields are omitted at the end, the match will proceed as if they were ‘*’. All cron operators are supported. Please refer to the crontab manual for their meanings. Flags are ignored.
* * * * * command
| | | | `- day of week (0 to 6 - Sunday = 0)
| | | `- month (1 to 12)
| | `- day of month (1 to 31)
| `- hour (0 to 23)
`- min (0 to 59)