cron L = Last?
carl at personnelware.com
Mon Nov 20 21:25:17 UTC 2006
How can I tell if the cron that gets installed supports 'L' for 'last'?
The 'L' character is allowed for the day-of-month and day-of-week fields. This
character is short-hand for "last", but it has different meaning in each of the
two fields. For example, the value "L" in the day-of-month field means "the last
day of the month" - day 31 for January, day 28 for February on non-leap years.
If used in the day-of-week field by itself, it simply means "7" or "SAT". But if
used in the day-of-week field after another value, it means "the last xxx day of
the month" - for example "6L" means "the last friday of the month". When using
the 'L' option, it is important not to specify lists, or ranges of values, as
you'll get confusing results.
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