Messages in this thread |  | | Date | Thu, 18 Oct 2001 09:02:22 +0100 | From | Nick Craig-Wood <> | Subject | Re: Making diff(1) of linux kernels faster |
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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/
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