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DD(1)                       General Commands Manual                      DD(1)

NAME
       dd - convert and copy a file

SYNOPSIS
       dd [option = value] ...

EXAMPLES
       dd if=/dev/fd0 of=/dev/fd1
                           # Copy disk 0 to disk 1

       dd if=x of=y bs=1w skip=4
                           # Copy x to y, skipping 4 words

       dd if=x of=y count=3
                           # Copy three 512-byte blocks

DESCRIPTION
       This  command  is  intended for copying partial files.  The block size,
       skip count, and number of blocks to copy can be specified.  The options
       are:

         if = file    - Input file (default is stdin)
         of = file    - Output file (default is standard output)
         ibs = n      - Input block size (default 512 bytes)
         obs = n      - Output block size (default is 512 bytes)
         bs = n       - Block size; sets ibs and obs (default is 512 bytes)
         skip = n     - Skip n input blocks before reading
         seek = n     - Skip n output blocks before writing
         count = n    - Copy only n input blocks
         conv = lcase - Convert upper case letters to lower case
         conv = ucase - Convert lower case letters to upper case
         conv = swab  - Swap every pair of bytes
         conv = noerror- Ignore errors and just keep going
         conv = notrunc- Do not truncate unmodified blocks
         conv = silent- Suppress statistics (MINIX 3 specific flag)

       Where  sizes  are expected, they are in bytes.  However, the letters w,
       b, or k may be appended to the number  to  indicate  words  (2  bytes),
       blocks  (512  bytes),  or  K  (1024  bytes),  respectively.  When dd is
       finished, it reports the number of full and  partial  blocks  read  and
       written.

SEE ALSO
       vol(1).

                                                                         DD(1)

NAME | SYNOPSIS | EXAMPLES | DESCRIPTION | SEE ALSO