From owner-freebsd-questions@FreeBSD.ORG  Thu Oct 13 13:14:27 2005
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From: RW <list-freebsd-2004@morbius.sent.com>
To: freebsd-questions@freebsd.org
Date: Thu, 13 Oct 2005 14:14:11 +0100
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Subject: Re: portmanager
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On Thursday 13 October 2005 07:17, Igor Robul wrote:
> RW wrote:
> >I'm probably missing something, because I can't see what the problem is.
> >
> >crontab(5) says you can define environmental variables in a crontab; and
> > the default system crontab already has a PATH variable pre-defined,
> > although it doesn't include /usr/local/bin in the path.
>
> But you may not wish export PATH with /usr/local/bin to all your cron jobs.

You don't need to. Variable definitions only apply to the lines that come 
after them - and a variable may be redefined.