undelete
 

i accidentally delete my files:( is there a way to undelete it???
also is there a tool in linux to defrag my hardisk??

At the bottom of this page, there are Similar Threads you could take a look at.

Also, you should take a look at the Linux Ext2fs Undeletion mini-HOWTO
http://www.linux.org/docs/ldp/howto/...ndeletion.html

However, if you deleted those files and have been writing to the partition since that time.
There is a good chance those files are gone for good.