shutdown abort vi bla.dbf (do what ever u want then !wq) -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Satheesh.Babu@xxxxxxxxxxxxxxxxxx Sent: 31 May 2004 19:38 To: oracle-l@xxxxxxxxxxxxx Subject: corrupting a block List, I wanted to simulate corruption in a block. I know using hex editor we can do that. Is there any other way? I think using 'dd' command we can do that. If so how. If any other way please provide details. Thanks and Regards, Satheesh Babu.S Bangalore.