Hi all, Thanks to get such fast and useful replies. I would like to ask one more that Can some one tell me where to find the code for the procedure 'delete'. ie the code that runs when a file is deleted from an ext3 filesystem.. where is this code placed. Regards Ranju. <div class="gmail_quote">On Wed, Apr 29, 2009 at 6:59 PM, Theodore Tso <<a href="mailto:tytso@mit.edu">tytso@mit.edu</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="im">On Wed, Apr 29, 2009 at 05:39:07AM -0600, Andreas Dilger wrote: > On Apr 28, 2009 22:08 -0500, Bruno Wolff III wrote: > > On Wed, Apr 29, 2009 at 06:15:59 +0530, > > ranjith kannikara <<a href="mailto:ranjithkannikara@gmail.com">ranjithkannikara@gmail.com</a>> wrote: > > > HiI am a pre-final year computer science engineering student. We are doing > > > an open source project to make an application to recover the deleted files > > > in an ext3 filesystem. In between we are having some doubts can any one make > > > some clarification? > > > > A good start would probably be to look at what ext3grep does. > > A good finish would be to take ext3grep and enhance it to do more than it > currently does (e.g. add ext4 support) instead of making a duplicate tool. </div>Note that converting it to use libext2fs would for more of its low-level functions would be one of the easier ways of accomplishing this, since all of the low-level extent manipulation functions are coded in libext2fs. On the other hand, you'll learn more about the low-level filesystem layout if you do it yourself; sone one is probably better from an engineering perspective in terms of making a robust and useful and long-term more easily maintained tool --- and the other approach is better from a pedagogical perspective. - Ted </blockquote></div> -- <a href="http://www.ranjithkannikara.blogspot.com/">http://www.ranjithkannikara.blogspot.com/</a>