From fdfb033476eba223a5aca781095e1ffa72b28ba7 Mon Sep 17 00:00:00 2001 From: gorhill Date: Thu, 29 Aug 2013 19:48:59 -0400 Subject: [PATCH] fleshing out --- README.md | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/README.md b/README.md index 2a5c0d8..5653a4b 100644 --- a/README.md +++ b/README.md @@ -16,9 +16,9 @@ https://en.wikipedia.org/wiki/Cron#CRON_expression, which I copy/pasted here (la Seconds No 0-59 * / , - Minutes Yes 0-59 * / , - Hours Yes 0-23 * / , - - Day of month Yes 1-31 * / , - ? L W + Day of month Yes 1-31 * / , - L W Month Yes 1-12 or JAN-DEC * / , - - Day of week Yes 0-6 or SUN-SAT * / , - ? L # + Day of week Yes 0-6 or SUN-SAT * / , - L # Year No 1970–2099 * / , - Asterisk ( * ) @@ -49,13 +49,20 @@ Hash ( # ) ---------- `#` 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. -Question mark ( ? ) -------------------- -Note: Question mark is a non-standard character and exists only in some cron implementations. It is used instead of `*` for leaving either day-of-month or day-of-week blank. +Predefined cron expressions +--------------------------- +(Copied from https://en.wikipedia.org/wiki/Cron#Predefined_scheduling_definitions, with text modified according to this implementation) -With the following differences: + Entry Description Equivalent to + @annually Run once a year at midnight in the morning of January 1 0 0 0 1 1 * * + @yearly Run once a year at midnight in the morning of January 1 0 0 0 1 1 * * + @monthly Run once a month at midnight in the morning of the first of the month 0 0 0 1 * * * + @weekly Run once a week at midnight in the morning of Sunday 0 0 0 * * 0 * + @daily Run once a day at midnight 0 0 0 * * * * + @hourly Run once an hour at the beginning of the hour 0 0 * * * * * -* Supports optional second field (before minute field) +Other details +------------- * If five fields are present, a wildcard year field is appended * If six field are present, `0` is prepended as second field, that is, `* * * * * *` internally become `0 * * * * * *`. * Domain for day-of-week field is [0-7] instead of [0-6], 7 being Sunday (like 0).