On Thu, 2023-04-06 at 19:05 +0200, Thomas Schmitt wrote:
> Hi,
>
>
> Pierre Frenkiel wrote:
> > crontab -l
>
> Plus:
> man 5 crontab
> which has in its section "EXAMPLE CRON FILE"
>
> # run five minutes after midnight, every day
> 5 0 * * * $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
>
> and explains further up
>
> The format of a cron command is very much the V7 standard,
> with a num‐
> ber of upward-compatible extensions. Each line has five time
> and date
> fields, followed by a command, followed by a newline character
> ('\n').
> ...
> 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)
>
> So the command shown by Greg Wooledge runs at 6:25 am the comand
>
> test -x /usr/sbin/anacron || ( cd / && run-parts --report
> /etc/cron.daily )
>
> which runs the programs in /etc/cron.daily (by run-parts(8)) if not
> /usr/sbin/anacron exists and is executable.
>
https://crontab.guru has a very nice explaining also.
