From: Bruce Zimmer (b.r.zimmer@WORLDNET.ATT.NET)
Date: Mon Sep 16 2002 - 17:20:16 EDT
By scheduling for the 1st, 2nd, 3rd, 4th, 5th, 6th and 7th and also the
1st day of the week (Monday) you can indeed schedule for the first
Monday of the month. The cron parameters are ANDed together and will
only run when all of the parameters match.
If the first Monday is the 3rd then it will not run on the 1, 2, 4, 5, 6
or 7th of the month but only on the 3rd. Likewise you can schedule on
the 3rd Tuesday with
* * 15-21 * 2 somejob
Unfortunately the last someday of the month is much more difficult as
months have the bad attribute of having variable number of days in a
month. It is possible to work around it by having 3 different lines in
the crontab, and then changing the February line every 4 years
Bruce Zimmer
Central Data Systems
(248) 615-4644 (direct)
(248) 705-9231 (cell)
bzimmer@centraldata.com
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Stephen Murphy
Sent: Monday, September 16, 2002 2:05 PM
To: aix-l@Princeton.EDU
Subject: Re: Question about crontab
Cron can schedule things for Monday or the first of the month but not
the
first Monday as you require. What I would do is to schedule a script
with
cron to run every Monday at 11PM and if the date was 7 or less, produce
the
report, otherwise produce nothing and exit.
--
*-----------------------------------------------------------------------
----
*
Stephen T. Murphy
Manager, Database and Technical Support
University Business Systems - MSC-100
The University at Albany, S.U.N.Y
Albany, New York 12222
Phone: (518) 437-4523 Fax: (518) 437-4540
MailTo:SMurphy@UAMail.Albany.EDU AIM: SMurphy199
-----Original Message-----
From: Drew Wrobel [mailto:Andrew_Wrobel@PEPBOYS.COM]
Sent: Monday, September 16, 2002 1:41 PM
To: aix-l@Princeton.EDU
Subject: Question about crontab
I have a need to run a script at 11pm on the first monday of every
month.
I'm a bit confused as to what the crontab entry should look like.
I know what the entry would look like for the first of the month,
run
a script
on a monday. But not on the first monday of every month.
Am I just confused or is this logical that would need to be put
into
the script?
Thanks
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