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