DD(1)

NAME
dd - disk dumper

SYNOPSIS
dd [option = value] ...

EXAMPLES

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 = silent    - Suppress statistics (Minix 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).