lkml.org 
[lkml]   [2001]   [Oct]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Making diff(1) of linux kernels faster
Horst von Brand wrote:
> =?iso-8859-1?q?willy=20tarreau?= <wtarreau@yahoo.fr> 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
> > 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.

$ echo "Test1" >> test1
$ ln test1 test2
$ emacs test2 # modify and save the file
$ ls -i test*
2491498 test1 2491500 test2 2491498 test2~

However as Horst von Brand noted if you try this with (standard) vi
you will edit the linked file which is the same behaviour as if you
set backup-by-copying-when-linked in emacs.

--
Nick Craig-Wood
ncw@axis.demon.co.uk
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:08    [W:0.056 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site