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shredding data from the inode and file system completely in fat4
to obtain the inode of the file root@bt:~/Desktop/abc# ls -li total 4 287685 -rw-r--r-- 1 root root 601 2013-05-31 09:09 test
to check the content on that inode
root@bt:~/Desktop/abc# istat /dev/sda1 287685 inode: 287685 Allocated Group: 35 Generation Id: 1866894116 uid / gid: 0 / 0 mode: rrw-r--r-- Flags: size: 601 num of links: 1
Inode Times: Accessed: Fri May 31 09:09:31 2013 File Modified: Fri May 31 09:09:10 2013 Inode Modified: Fri May 31 09:09:31 2013
Direct Blocks: 127754
to save this data to a file from that i node
root@bt:~/Desktop/abc# blkcat -h /dev/sda1 287685 >out
shredding the data root@bt:~/Desktop/abc# shred test when the data is shred and i open the file from the editor it contains shredded contents, but the problem arise when i open the content using blkcat command listed above. it contains the original data. I know the action of shred is some where in the journal entry and the file system has made a backup of it some where. I have google the question but didn't find any thing that works for me. i want the content from inode or any backup to be removed immediately in linux, now it is doing on the system restart.
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