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Re: Hard linked files cannot be modified

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Re: Hard linked files cannot be modified

Subject: Re: Hard linked files cannot be modified
From: Hamish Allan <email@hidden>
Date: Thu, 17 Nov 2005 12:14:50 +0000


On Wed, 16 Nov 2005 00:28:23 -0800, Prady K <email@hidden> wrote:

Before ln
=======
-rw-r--r--    1 admin  admin       20 Nov 16 00:25 test.txt

After ln
=======
-rw-r--r--    2 admin  admin       20 Nov 16 00:25 test.txt
-rw-r--r--    2 admin  admin       20 Nov 16 00:25 testlink.txt

After editing testlink.txt in TextEdit
=======
-rw-r--r--    1 admin  admin       20 Nov 16 00:25 test.txt
-rw-r--r--    1 admin  admin       27 Nov 16 00:26 testlink.txt

It would not surprise me at all if TextEdit (indirectly) uses - [NSData writeToFile:@"testlink.txt" atomically:YES] which will first write the file to /tmp/foo.txt, then delete the original testlink.txt and rename /tmp/foo.txt to testlink.txt. Presumably vi is doing something similar as well.

Best wishes,
Hamish


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