OT: Cron question

[Jakob Østergaard]

Hello Wulfers:

Sorry for posting OT here, but I know that you know what I'm doing
wrong here   :)

Problem:  I want cron to run job A every day, with one exception:
I want to run job B the first friday every month, and I do not
want job A to run on that particular day.

Yes, it's for running backups  ;)

So, I put the following in my /etc/crontab:

# rule 1:
# Every day except fridays
45 23 *    * 1-4,6,7 user jobA

# rule 2:
# All fridays except for the first in the month
45 23 8-31 * 5       user jobA

# rule 3:
# The first friday every month
45 23 1-7  * 5       user jobB


My problem right now is with rule 2:  It will match every
day, not just fridays !    Why doesn't cron understand the
day-in-week field when I supply a day-in-month field ?

My cron is:  vixie-cron 3.0.1  -  this is a Redhat 7.1 system
with some 7.2 packages...

-- 
................................................................
:   jakob at unthought.net   : And I see the elder races,         :
:.........................: putrid forms of man                :
:   Jakob Østergaard      : See him rise and claim the earth,  :
:        OZ9ABN           : his downfall is at hand.           :
:.........................:............{Konkhra}...............: