Date: Tue, 28 Dec 2004 09:11:06 -0500 From: "Dan Langille" <dan@langille.org> To: Andy Harrison <aharrison@gmail.com>, "Joseph E. Maxwell" <jemaxwell@jaymax.com> Cc: freebsd-database@freebsd.org Subject: Re: Cron jobs setup Message-ID: <41D1232A.226.3F1BA3A0@localhost> In-Reply-To: <a22ff29404122806083de7a170@mail.gmail.com> References: <41CD04B9.404@jaymax.com>
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On 28 Dec 2004 at 9:08, Andy Harrison wrote: > On Fri, 24 Dec 2004 22:12:09 -0800, Joseph E. Maxwell > <jemaxwell@jaymax.com> wrote: > > I am setting up a cron job to run a shell script at 1 hr interval and to > > have the output of the script sent to a user. I have this in the cron > > file inserted by crontab > > > > cat /var/cron/tabs/whoser > > > > # DO NOT EDIT THIS FILE - edit the master and reinstall. > > # (cron_reg installed on Fri Dec 24 18:13:01 2004) > > # (Cron version -- $FreeBSD: > > src/usr.sbin/cron/crontab/crontab.c,v 1.12.2.4 2001/06/16 > > 03:18:37 peter Exp $) > > 0 1 * * * > > /blah/blah/blah/blah/blah/blah/blah/blah/blah/blah/pam2deb.shl > > MAILTO=user > > > Reread the crontab manpage. 0 1 * * * doesn't mean once per hour, it > means that it will run every day at 1AM. If you want once per hour, I > believe you can do */60 * * * * For more info, see man 5 crontab: "Steps are also permitted after an asterisk, so if you want to say ``every two hours'', just use ``*/2''." This is also once per hour: 0 * * * * ... etc That runs at the top of the hour. Some people prefer to distribute the load by running at some other time, e.g. at 8 * * * * (eight minutes after the hour). -- Dan Langille : http://www.langille.org/ BSDCan - The Technical BSD Conference - http://www.bsdcan.org/
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