OBET> help

OBET (Oracle Block Editor Tool) commands:

  open <config_file>    - Load file list from config file (format: <num> <path>)

  info                  - Show loaded file list (from open command)

  set filename <path>   - Set target file path (required)

  set file <num>        - Set filename using loaded file number (from open list)

  set blocksize <size>  - Set block size (2048,4096,[8192],16384,32768)

  set block <num>       - Set block number (starts from 0, default: 1)

  set offset <offset>   - Set offset within block (< blocksize, default: 0)

  set count <bytes>     - Set number of bytes to read (default: 32)

  set mode edit/browse  - Enable edit/browse mode

  d/dump [options]      - Display data (options: block X, offset Y, count N)

  m/modify <hex> [opts] - Modify data with hex (opts: block X, offset Y)

  undo                  - Undo last modification

  sum [block X]         - Calculate checksum for block (default: current block)

  sum apply [block X]   - Apply checksum: write calculated value to block

  tailchk [block X]     - Calculate tailchk for block (default: current block)

  tailchk apply [block X] - Apply tailchk: write calculated value to block

  repair [block X]      - Repair bad block (fix seq_kcbh, tailchk, checksum)

  copy data <src> to <dest>  - Copy data between files

    <src> format: file,block,offset,count (e.g., 1,1,10,64)

    <dest> format: file[,block][,offset] (e.g., 3 or 3,1 or 3,1,128)

  copy block file

  copy chkscn file n to file m         - Copy datafile header checkpoint SCN info

  copy resetlogscn file n to file m    - Copy datafile header resetlogs info

  backup [file n] [block m] - Backup data block (optional file and block parameters)

  corrupt [block X]     - Mark block as corrupted (default: current block)

  show                  - Display current settings (filename, blocksize, block, offset, count, mode)

  license               - Show/manage software license (registration code required)

  version               - Show software version and developer information

  p/print <param>       - Print Oracle structure,Use the 'p/print' command to see details

  undo                  - Undo the last copy chkscn or copy resetlogscn operation

  spool <file>          - Start logging to file (spool off to stop)

  help                  - Show this help message

  quit/exit             - Exit OBET

OBET> open 1.txt                

Loaded 2 files from config file '1.txt'.

OBET> info

Loaded files (2 total):

----------------------------------------

Number  Path

----------------------------------------

     1  /data/app/oracle/oradata/orcl/system01.dbf

    44  /data/app/oracle/oradata/orcl/xff26.dbf

----------------------------------------

OBET> set file 44

filename set to: /data/app/oracle/oradata/orcl/xff26.dbf (file

OBET> d

File: /data/app/oracle/oradata/orcl/xff26.dbf

Block: 1                Offsets:     0 to    31

--------------------------------------------------------------------------------

0xifenfei000 0BA20000 0100000B 00000000 00000104 B05F0000 00000000 0004200B 65583D61

<32 bytes read>

OBET> backup file 44 block 1

Created backup directory: backup_blk

Successfully backed up block 1 from file

OBET> copy resetlogscn file 1 to file 44

Error: Edit mode not enabled. Use 'set mode edit' first.

OBET> set mode edit    

mode set to: edit

OBET> copy resetlogscn file 1 to file 44

Confirm Modify resetlogscn:

Source: file

Target: file

Proceed? (Y/YES to confirm): y

Successfully copied resetlog SCN information from file

OBET> copy chkscn file 1 to file 44

Confirm Modify chkscn:

Source: file

Target: file

Proceed? (Y/YES to confirm): y

Successfully copied checkpoint SCN information from file

OBET> tailchk

Check tailchk for File /data/app/oracle/oradata/orcl/xff26.dbf, Block 1:

current = 0x010B0000, required = 0x010B0000

OBET> sum

Check value for File /data/app/oracle/oradata/orcl/xff26.dbf, Block 1:

current = 0xB05F, required = 0x6DA3

OBET> sum apply

Confirm applying checksum:

File: /data/app/oracle/oradata/orcl/xff26.dbf

Block: 1

Offset in block: 16 (file offset: 0x0xifenfei010)

Original value: 0xB05F

New value:      0x6DA3

Confirm? (Y/YES to proceed): y

Verification successful: Stored checksum matches calculated value (0x6DA3).

Checksum applied successfully.