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From: Thomas Koch <thomas@koch.ro>
To: linux-btrfs@vger.kernel.org
Subject: check for reflink capability and for shared data
Date: Sat, 24 Aug 2013 18:09:58 +0200
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Message-Id: <201308241809.58701.thomas@koch.ro>
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Hi,

how can I do the following in a shell script:

- check whether my file system supports cp --reflink?
- check whether two files share the same data on disk, i.e. one has been 
created by cp --reflink of the other?

Thank you!

Thomas Koch