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DD(1) User Commands DD(1)

dd - manual page for dd 1.31.1

dd [if=FILE] [of=FILE] [ibs=N obs=N/bs=N] [count=N] [skip=N] [seek=N]

BusyBox v1.31.1 (2020-04-30 13:38:01 EDT) multi-call binary.
[conv=notrunc|noerror|sync|fsync] [iflag=skip_bytes|fullblock] [oflag=seek_bytes|append]

Copy a file with converting and formatting

if=FILE
Read from FILE instead of stdin
of=FILE
Write to FILE instead of stdout
bs=N
Read and write N bytes at a time
ibs=N
Read N bytes at a time
obs=N
Write N bytes at a time
count=N
Copy only N input blocks
skip=N
Skip N input blocks
seek=N
Skip N output blocks
conv=notrunc
Don't truncate output file
conv=noerror
Continue after read errors
conv=sync
Pad blocks with zeros
conv=fsync
Physically write data out before finishing
conv=swab
Swap every pair of bytes
iflag=skip_bytes
skip=N is in bytes
iflag=fullblock Read full blocks oflag=seek_bytes seek=N is in bytes oflag=append Open output file in append mode status=noxfer Suppress rate output status=none Suppress all output

N may be suffixed by c (1), w (2), b (512), kB (1000), k (1024), MB, M, GB, G

April 2020 Fidelix 1.0