> Date: Thu, 18 Oct 2001 09:02:22 +0100
> From: Nick Craig-Wood <email@example.com>
> To: firstname.lastname@example.org
> Cc: Paul Gortmaker <email@example.com>, firstname.lastname@example.org,
> willy tarreau <email@example.com>
> Subject: Re: Making diff(1) of linux kernels faster
> Horst von Brand wrote:
> > willy tarreau <firstname.lastname@example.org> said:
> > > Be very careful not to modify a multi-linked file, or
> > > it will be damaged in all trees and won't be seen by
To be sure it is not possible to modify original tree files, I do
chown -R root.root original_tree
before copying it (via cp -lR) to new one, which will be modified with
whatever tools by me, logged in as a regular user. For those having root
access to a box this might be a useful way of preventing accidents ...
(this of course also assumes sane file permissions)
> > > diff. your editor must unlink before saving.
> > Most don't. ed(1), vi(1) and emacs(1) are careful tro write to the very
> > same file. jed(1) is the only outlier I'm aware of...
> emacs does mv file file~ before saving file so the edited file will
> not be linked byt the backup file will be. You can stop it doing this
> by setting backup-by-copying-when-linked.
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