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Date:      Sun, 03 Jan 1999 16:18:53 -0800
From:      Mike Smith <mike@smith.net.au>
To:        "Stephen J. Roznowski" <sjr@home.net>
Cc:        mike@smith.net.au, hackers@FreeBSD.ORG
Subject:   Re: Why is root's crontab different? 
Message-ID:  <199901040018.QAA08388@dingo.cdrom.com>
In-Reply-To: Your message of "Sun, 03 Jan 1999 18:15:54 EST." <199901032315.SAA04839@istari.home.net> 

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> > From: Mike Smith <mike@smith.net.au>
> > 
> > > > From: "Brian W. Buchanan" <brian@CSUA.Berkeley.EDU>
> > > > 
> > > > On Sun, 3 Jan 1999, Stephen J. Roznowski wrote:
> > > > > In tracking down the cause of my "/var/log/maillog.0: No such file
> > > > > or directory" errors from newsyslog, I "discovered" that I had both
> > > > > a root crontab entry and /etc/crontab. Both of these were running
> > > > > newsyslog at the same time and they were conflicting with each
> > > > > other.
> > > > > 
> > > > > My question is why is root's crontab entry treated differently (i.e.
> > > > > a file in /etc) as opposed to just having a crontab (in /var/cron/tabs)?
> > > > 
> > > > /etc/crontab allows you to specify the user who commands should be run as
> > > 
> > > I understand the difference, but why would this be better than installing
> > > crontabs for the various (system) users? (for example, news).
> > 
> > Because /etc/crontab is controlled by the adminstrator, while the 
> > user's contab is controlled by the user.
> 
> [Not trying to be argumentative here....]
> 
> In the case of root, what is the difference? [Or any of the "system users",
> like news, etc...]

They grow out of generalising fundamentally different approaches.  The 
per-user crontab is a mechanism whereby any user can arrange to have 
cron run jobs for them.  The system crontab in /etc is a mechanism 
whereby the administrator can arrange to have jobs run as any user.

The overlap creates a little duplication of functionality, but it's by 
no means a conflict.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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