DD(1) >>>>> >>>>>>>> DD(1)
>>>>>
dd - >>> >>>>> >>>>>
>>>>
dd [>>>>>]...
dd >>>>
>>>>>
>>> >>>> >> >>>>>> >>>>>>>
>>>>> >>>>>>>>>.
bs=>>>>>>
>>>>> >>>>>> >> >>> >>>
>>>>>> >> >>>>> >>>>>>>
(>>>>>>>: 512)> >>>>> ibs > obs
cbs=>>>>>>
>>>>> >>>>>> >> >>>>>
>>>>>>>
conv=>>>>>>>
>>>>> >>>>> >>>>>
>>>>>> >>>>>> >>>>>>>>
>>>>>>
count=>
>>> > >> >>>>> >>>>>>>
>>>
ibs=>>>>>>
>>>>> >> >>> >>> >>>>>>
>> >>>>> >>>>>>>
(>>>>>>>: 512)
if=>>>
>>>>>>> >> >>> >>>>> >>
>>>>> >>>>>>>
iflag=>>>>>
>>>>>>> >>>>> >>>>>>
>>>>>> >>>>>>>> >>>>>>
obs=>>>>>>
>>>>> >>>>>> >> >>>>>
>>>>>>> (>>>>>>>: 512)
of=>>>
>>>>>>> >>> >>> >>>>> >>
>>>>> >>>>>>>
oflag=>>>>>
>>>>>>> >>>>> >>>>>>
>>>>>> >>>>>>>> >>>>>>
seek=>
(>> oseek=>) >>>> > >> >>>
>>>>> >>>> obs
skip=>
(>> iseek=>) >>>> > >> >>>
>>>>> >>>> ibs
status=>>>>>
>>>>>>> >>>>>>>>>
>>>>>> >>>>>>> >>>
>>>>> >>>>>>>> 'none' >>>>
>> >>> >>> >>>>> >>>>>>
'noxfer' >>>> >>>>>>>> >>>>>
>>>>>>>>> 'progress' >>>>
>>>>>>>> >>> >>>>>
>> >>>> > > >>>>>> >>>>>>>>
>>>>>>> >>>>>>>: c=1> w=2> b=512>
kB=1000> K=1024> MB=1000*1000> M=1024*1024> xM=M>
GB=1000*1000*1000> G=1024*1024*1024> >>>>>
>>>>>>> >> T> P> E> Z> Y> R> Q.
>>>> >>>>>>> >>>>>>>
>>>>>>>> >>>>>: KiB=K> MiB=M>
>>>>>. >>> >>>>> > >>>>>>
'B'> >>>> >>>> >>>>>>>> >>
>>>>>.
>> >>> >>>>> >>>> >> >>>>:
ascii >> EBCDIC >>> ASCII
ebcdic >> ASCII >>> EBCDIC
ibm >> ASCII >>> EBCDIC >>>>
>>>>
>>> >>>>>>> >>>>>>>>
>>>> >>>> >>>>>>> >>>
>>> cbs
unblock
>>>>>>> >>>>>>>>
>>>>>>> >> >>>>>>> >>>>
cbs >>>> >>>>
lcase >>>>> >>>>>> >>>>>>>
>>> >>>>>
ucase >>>>> >>>>>> >>>>>>>
>>> >>>>>
sparse >>>>>> >>>>>>> >>>>> >>
>>>>> >>> >>> >>>> >>>>>
(NUL)
swab >>>>> >> >>> >> >>>>>>
>>>>>
sync >>> >> >>>> >>> >>>>>>>>
(NUL) >>> >>> ibs> >>>
>>>>>>>> >> block >> unblock>
>>>>> >>>>>>> >>>>> >>
>>>>>>>
excl >>>>>>> >>> >>> >>>
>>>>> >>>>>>> >>>>>>
nocreat
>>> >>>>> >>> >>>>>
notrunc
>>> >>>>>> >>> >>>>>
noerror
>>>>>>>>> >>> >>>>>
>>>>>>>
fdatasync
>>>>> >>>>>> >>> >>>>>
>>>>>>>>> >>> >>>>>>>
fsync >>>>>>> >>>> >> >>>>>
>>>>>>>> >>>>>>> >>>>>
>> >>> >>> >>>> >> >>>>:
append >>> >>>>>>> (>>>>> >>>>>
>>>> >>>>>> conv=notrunc)
direct >>>>>>> >>>/>>> >>>>>
>>>>>>>>
directory
>>>>>>> >> >> >>> >>>>>>
dsync >>>>>>> >>>/>>> >>>>>>
>>>>>>>>
sync >>>>>>> >>>> >>>>>>>>
>>>>>>> >>>>>
fullblock
>>>>> >>> >>> >>>>> (>>
iflag >>>)
nonblock
>>>>>>> >>>/>>> >>> >>>>
noatime
>>> >>>>> >>> >>>>>>
nocache
>>> >>>>> >>>>>>>. >>>>
>>>>> oflag=sync
noctty >>> >>>>> >>>>> >>>> >>
>>>>>
nofollow
>>> >>>> >>>>>>>
>>>>>>>
>>>>> >>>>> USR1 >>> >>>>> 'dd'
>>>>> >>>>>> >>>>
>>>>>>>> >>>>>/>>>>> >>>
>>>>> >>>>>>> >> >>>>>>
>>>>>.
>>>>>>>> >>:
--help >>>> >>> >>>>>>>> >>>>>
--version
>>>> >>>>>>> >>>>>>>
>>>>>
>>>>>>
>>>> >>> >>>>> >>>>>>
>>>>>>> >>>>>>>> >>>>.
>>>>>>> >> >>>>>>>
>>>> >> >>>>>> >>>: bug-coreutils@gnu.org
>>>> GNU coreutils >>>>>>>:
>>>>>> >>>> >>>>>>>>
>>>>>>> >>>:
>>>> >> >> >>>>> >>>>> >>>
>>>> >>>>>
>>>> >>>>> (C) 2026 >>>>>
>>>>>>>>> >>>>> (Free Software Foundation,
Inc.). >>>>> GPLv3+: GNU GPL >>>>>>> 3 >>
>>>>. .
>>> >>>>>> >>: >>> >> >>
>>>>>> >>>>>> >>>>>>. >>
>>>> >> >>>>> >>> >>>>>
>>>> >>>> >> >>>>>>>.
>>>> >>>>>
>>>>>>> >>>>>>
>> >>>> >>>>>> >>>: info '(coreutils) dd
invocation'
>>>>>
>>>>>> >>> >>>>>> >>
>>>>>> >>>>>> >>>> >>>>
> >>>> >>>>>>>
>>> >>>>>>> >> >>>>>
>>>>>>> >>>> >>>> >>>
>>>>>> >>>>>>> 3
>> >> >>>>
>>>>>>> >>> >>>> >>>>
>>>>>. >> >>>> >> >>>>>>.
>>> >>>> >> >>>>> >> >>>>>
>>>> >>>>>> >>>> >>>>
>>>>> >>>> >>>>>>>> >>>
>>>>> >>>> >>>>>>>>>:
.
GNU coreutils 9.11 >>>>> 2026 DD(1)