[arm-allstar] Time announcement at the top of the hour

[Nate Bargmann]

David already showed how to completely disable the time announcements,
but they can be customized in various ways.

On one repeater I have the announcements running from 8 AM to 9 PM with
the weather announcement:

# Top of the hour time and weather announcement
00 08-21 * * * (source /usr/local/etc/allstar.env ; /usr/bin/nice -19 /usr/bin/perl /usr/local/sbin/saytime.pl 66508 $NODE1 >
+/dev/null)

On another repeater that is still in testing mode I limit the
announcement to 9 AM to 9 PM but only say the time every three hours:

00 09,12,15,18,21 * * * (source /usr/local/etc/allstar.env ; /usr/bin/nice -19 /usr/bin/perl /usr/local/sbin/saytime.pl $NODE1 >
+/dev/null)

In these examples you can see how to use a range or a list for the
hours.  The same syntax can be used for the other fields.  There are
other ways to specify the time steps.

While it may be terse, 'man 5 crontab' is the reference for the crontab
file.

73, Nate

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