Re: Strange behavior with x! and permissions

On Wednesday, May 3, 2017 at 8:41:01 AM UTC-5, Niels Kobschätzki wrote:
> I found today the following on a Debian 8.7 (vim 7.4.576) and FreeBSD 11
> (8.0.579): I am in my home-dir "user" and there I create a file with the
> following permissions: root:user 640
>
> When I open the file as "user", vim tells me that the file is read-only.
> I edit it, and close it with :x!
> vim writes the file and sets the permissions to:
> user:user 640
>
> I didn't use sudo or anything. When I tried to do a chown or chmod on
> this file to set the permissions to user:user from root:user it failed
> because "user" didn't have the permissions.
>
> What is happening here?
>
> Niels

I expect Vim is renaming the old file and writing a new one. See :help 'backupcopy' and 'writebackup'.

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