Add the following line to your Package.swift file
.package(url: "https://github.com/Ponyboy47/Cron-Swift.git", from: "2.3.0")import Cron
let job = try? CronJob(pattern: "*/10 * * * * *") { () -> Void in
print("job executes every 10 seconds")
}5 - 7 fields separated by TAB or whitespace:
| Field name | Range | Special Characters | Remarks |
|---|---|---|---|
| second | 0-59 | * / , - H |
|
| minute | 0-59 | * / , - H |
|
| hour | 0-23 | * / , - H L W |
|
| day of month | 1-31 | * / , - H |
|
| month | 1-12 or JAN-DEC | * / , - |
|
| day of week | 0-7 or SUN-SAT | * / , - L # |
0 or 7 is SUN |
| year | - | * / , - |
The reference documentation for this implementation is found at Wikipedia.
Asterisk means the full range in the field. For example, * for an hour entry implies 0-23.
Slashes can be combined with ranges to specify step values.
Commas are used to separate items of a list.
Hyphens are used for ranges.
Ranges are two numbers separated with a hyphen. For example, 8-11 for an hours entry specifies execution at hours 8, 9, 10 and 11.
'#' is allowed for the day-of-week field, and must be followed by a number between one and five. It allows you to specify constructs such as "the second Friday" of a given month.
The H symbol can be used like a range. For example, H H(0-7) * * * means some time between 0:00 AM (midnight) to 7:59 AM.
The H symbol can be thought of as a random value over a range, but it actually is a hash of the given value, not a random function, so that the value remains stable for it.
When used in the day-of-week field, it allows you to specify constructs such as "the last Friday" ("5L") of a given month. In the day-of-month field, it specifies the last day of the month.
This character is used to specify the weekday (Monday to Friday) nearest the given day.