when use vim command the block number will change. but when use echo "something" > a file. the block number will not change.
zsk@zsk-laptop:~$ sudo filefrag -v a
Checking a
Filesystem type is: ef53
Filesystem cylinder groups is approximately 104
Blocksize of file a is 4096
File size of a is 13 (1 blocks)
First block: 3013938
Last block: 3013938
a: 1 extent found
zsk@zsk-laptop:~$ cat a
hello,world!
zsk@zsk-laptop:~$ vim a
zsk@zsk-laptop:~$ cat a
hi,hello,world!
zsk@zsk-laptop:~$ sudo filefrag -v a
Checking a
Filesystem type is: ef53
Filesystem cylinder groups is approximately 104
Blocksize of file a is 4096
File size of a is 16 (1 blocks)
First block: 3013924
Last block: 3013924
a: 1 extent found
2009/6/10 Stephen Samuel (gmail) <darkonc@xxxxxxxxx>
an example test case might be useful.
I'm not clear what you're trying to do, or what the problem is.On Tue, Jun 9, 2009 at 10:40 PM, Sucan Zhang <bitzsk@xxxxxxxxx> wrote:
_______________________________________________Hi,
why use cat command to edit a file , the blocks of the file will not change.
but use vim command to edit a file, the blocks of the file will change?
Thanks in advance!
--
Regards,
Sucan
Ext3-users mailing list
Ext3-users@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/ext3-users
--
Stephen Samuel http://www.bcgreen.com Software, like love,
778-861-7641 grows when you give it away
--
Regards,
Sucan
_______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
