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Daniel <hanmoai@xxxxxxxxx> writes:
> I am running it as root,
That's why.
> but the permission is read-only to root also.
The behavior was changed in Emacs 22. From etc/NEWS:
*** When you are root, and you visit a file whose modes specify
read-only, the Emacs buffer is now read-only too. Type C-x C-q if
you want to make the buffer writable. (As root, you can in fact
alter the file.)
And the corresponding antinews[1] entry:
* When you are logged in as root, all files now give you writable
buffers, reflecting the fact that you can write any files.
[1] "For those users who live backwards in time, here is information
about downgrading to Emacs version 21.4."
(info "(emacs)Antinews")
--
Johan BockgÃrd
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