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Re: misc/42237: /dev/null permission issues
The following reply was made to PR misc/42237; it has been noted by GNATS.
From: David Holland <dholland-bugs%netbsd.org@localhost>
Cc: rider <mr.qweo%gmail.com@localhost>
Subject: Re: misc/42237: /dev/null permission issues
Date: Mon, 14 Dec 2009 02:57:26 +0000
On Wed, Nov 04, 2009 at 08:58:38PM +0300, rider wrote:
> > ?Anyone who makes a symlink point at /dev/null is just asking for big
> > ?trouble, especially if it is any pathname that could ever be accessed in
> > ?any way by any privileged process.
> So, the correct way to get rid of less(1) history is LESSHISTFILE
> environment variable setting of "-", but redirecting garbage to the
> black hole is useful, so the flag is to be set by default indeed.
I have found that the safest way to disable the behavior is to
mkdir ~/.lesshst. This seems to prevent less from writing anything
and doesn't cause it to leave a mess behind.
I would argue that the misfeature should be turned off in less, but
since less is a 3rd-party program this would be expensive from a
documentation and user-expectations point of view. So it isn't likely
to happen. If anyone wants it to happen badly enough, ask on
David A. Holland
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