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From Nico Kadel-Garcia <nka...@gmail.com>
Subject Re: svn delete removes read-only files
Date Wed, 20 Nov 2013 12:22:15 GMT
C and C++ programs do not use the "um" command internally. They use
"unlink", which is what the "rm" commad uses internally, which I see
scattered throughout the source code. C functions are not going to be
interactive unless someone actually programs in a deliberate
interaction.

That said, I can attest that "rm" has been doing this for at least 15
years. My memory is hazy about it, but I *do* think this was the
behavior in BSD 4.2, 25 years ago.


On Wed, Nov 20, 2013 at 12:44 AM, David Chapman <dcchapman@acm.org> wrote:
> On 11/19/2013 6:28 PM, Ryan Schmidt wrote:
>>
>> On Nov 18, 2013, at 10:37, Rick Varney wrote:
>>
>>> So for Redhat 5, rm does seem to give read-only files some special
>>> treatment.  The fact that rm on your OS does not makes me wonder if I am
>>> wrong about how typical this behavior is in other Linux/Unix flavors.
>>
>> Both GNU rm (used on Linux) and BSD rm (used on OS X and *BSD) do this.
>> From the BSD rm manpage on OS X 10.9:
>
>
> It's quite possible that I haven't read the rm man page since the 1980s.
> :-)  Also, the only time I tend to have read-only files is when I am running
> as superuser, in which case I run "rm -f" to get rid of stuff without the
> prompt from the "rm -i" alias that is the default within the superuser
> account.  So I have never seen the prompt.
>
> For the record, my machines mostly run CentOS, so they have the behavior
> described.  I just confirmed this by creating a read-only file in a
> non-superuser account.  Guess I learned something today.
>
> --
>     David Chapman      dcchapman@acm.org
>     Chapman Consulting -- San Jose, CA
>     Software Development Done Right.
>     www.chapman-consulting-sj.com
>

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