Em qui, 2019-05-16 às 12:45 -0300, Henrique Fagundes escreveu:
> Prezado Colegas,
>
> Primeiramente, saudações "pinguianas" e boa tarde!
>
> Estou com uma dúvida boba no Crontab.
>
> No arquivo /etc/crontab, fiz o seguinte agendamento:
>
> 00 6 22 */3 * root /usr/local/bin/script.sh
>
> Levando em consideração que hoje é dia 16, eu gostaria de saber se o
> crontab vai executar o script no próximo dia 22 (daqui a 6 dias), ou
> somente no dia 22/08 (3 meses depois).
>
> Ficarei grato com quem puder esclarecer.
de man 5 crontab
field allowed values
----- --------------
minute 0-59
hour 0-23
day of month 1-31
month 1-12 (or names, see below)
day of week 0-7 (0 or 7 is Sun, or use names)
A field may be an asterisk (*), which always stands for ``first-
last''.
Ranges of numbers are allowed. Ranges are two numbers separated
with a
hyphen. The specified range is inclusive. For example, 8-11 for
an
``hours'' entry specifies execution at hours 8, 9, 10 and 11.
Lists are allowed. A list is a set of numbers (or ranges)
separated by
commas. Examples: ``1,2,5,9'', ``0-4,8-12''.
Step values can be used in conjunction with ranges. Following a
range with ``/<number>'' specifies skips of the number's value through
the range. For example, ``0-23/2'' can be used in the hours field to
specify command execution every other hour (the alternative in the V7
standard is ``0,2,4,6,8,10,12,14,16,18,20,22''). Steps are also
permitted after an asterisk, so if you want to say ``every two hours'',
just use ``*/2''.
Names can also be used for the ``month'' and ``day of week''
fields. Use the first three letters of the particular day or month
(case does not matter). Ranges or lists of names are not allowed.
o seu cron ira executar de 3 em 3 meses no dia 22 as 6 horas da manha o
comando