XZ(1) XZ >>>> XZ(1)
>>
xz, unxz, xzcat, lzma, unlzma, lzcat - .xz >>> .lzma >>>
>> >> >> >>>>>
>>
xz [<>>>...] [<>>>...]
>> >>
unxz >>> xz --decompress >>> >>>>>.
xzcat >>> xz --decompress --stdout >>> >>>>>.
lzma >>> xz --format=lzma >>> >>>>>.
unlzma >>> xz --format=lzma --decompress >>>
>>>>>.
lzcat >>> xz --format=lzma --decompress --stdout >>>
>>>>>.
>> >>> >>>> >> > >>>>> >>> >,
unxz > xzcat >> >> xz >>> >>> >> >(xz -d
>> xz -dc)> >>> >>>>>>.
>>
xz> gzip(1) > bzip2(1) > >>> >>> >>> >>
>> >>> >> >>>>>. >> >> >>> .xz
>>>>, LZMA >>>>>> >>>> >> .lzma
>>> >> >>> >> RAW >> >>>>
>>>>>. >>>, lzip>> >>>> .lz >> >>
>>> >>>>>.
> >> > >> xz >> >> >> >>> >> >>
>>> >>>>. <>>> >> >>>>> <>>>
>> ->>, xz >>>> >> >>> >> >>>
>>>> >> >>> >>>>>. xz >>>
>>>>> >>> >> >> >>>> >>
>>>> >>>> >>> >>(>>> >>>>
<>>>> >>>)>>>. >> >>>>, xz
>>>>> >>>>> >>>> >> >>> >>
>>> >>> >>>>>.
--stdout > >>>> >> >, -> >> <>>>> >>
<>>> >>>> >>> > >> >>>>
>>>>>:
o >>> >, >> >> >>> >>>(.xz or .lzma) >
>> >> >> >> >> >> >>>>> >>>.
o >> >>> >, .xz, .lzma, .lz >>>> >>
>>>> >>>> >> >> >>> >>>>>.
xz>>> .txz, .tlz >>>> >>>>, .tar >>>>
>>>>>.
>> >>> >> >>>, >>> >>>> <>>>>
>>>>>.
>> >>>> >>>> >>>, xz> >>>
>>>>, >> >>> >>> >> <>>>>
>>>>>:
o <>>>> >> >>> >> >. >>> >>>
>>>> >>>, >> >>> >>>> >>>>.
o <>>>> >> >>> >> >>> >.
o <>>>> setuid, setgid, >>> >> >>> >>>>
>.
o >> >>> >>>> >>>>, <>>>> >>
>> >>> >>>> >> >>> >(.xz >>>>
>>>> .xz >> .txz, .lzma >>>> >>>> .lzma
>> .tlz).
o >> >>> >> >>> >>>>, <>>>> >>
>> >> >>>(.xz, .txz, .lzma, .tlz, .lz)> >>>
>>> >.
<>>> > >> >> >> >>> >>>> >>, xz>
>>>, >>>>, >>, >> >>, >> >> >>>
>> <>>>>> >> >>> >>> >>>>>.
>> >> >>> >>>>, >>> >>>> >>
<>>>> >> >>> >> >>>> >> >>>
>>>> >>> >>>. xz> >> >> >>
>>>> >> >> >> >> >>>>>>
>>>> >>> >>>> >>>>.
>> >>> >>> >> >>, --keep >>> >>>>
>>> >> >> <>>>> >>>>>. >>
<>>>> >>> >> >>>> >>>>> >>>
>>>> >> >>>> >>>>.
xz >>>>> SIGINFO >>> >> SIGUSR1 >>>>
>>> >> >>>> >> >>> >>>>>. >>
>>> >>>> >>> >>>> >>>> --verbose
>>> >>>> >> >>>> >>>>
>>>>>.
>>> >>
xz >>> >>> >> >>>>>> >>>> >
>>>>>>> >> >>> >> >>>>. >>
>> >>>>> >>> >> >>> >>>
>>>> >> >>>> >> >> >>>>>. >>
>> >> >>>>> >>> >> >, >> >>>>
>>> >>>> 5% >> 20% >> >>>>>. >>
>>, xz -9> >>> >> >> >>> >> 65MiB
>>> >>> >>>>>. >>>>>, >> >>>
> >> >>>> >>>> >>> .xz >>>>
>>> >>>>>>.
>> >> >>> >>>> >> >>> >>>>
>>>> >>>> >> >>> > > >>>>.
>> >>> >>> >>> >>, xz> >>>>>
>>> >>> >> >>> >> >> >>>
>>>>>. >> >>>>>> >> > >>>
>>> >>>> >>> >>>> >>>, >>>
>>>>>> >>> >>>> >>>>(>> >>,
ulimit(1)> >>>> >> >>>> >>>> mmap(2)>
>>>> >>>>).
>>> >> >> >>> --memlimit=<>>>>> >>>
>>>> >>> > >>>>. >>
XZ_DEFAULTS=--memlimit=150MiB> >> XZ_DEFAULTS >> >>>
>>>> >> >>> >>> > >>>>.
--memlimit-compress=<>>>>> >>>
--memlimit-decompress=<>>>>> >>> >>>> >> >
>> >>> >>> >> >> >>> > >>>>.
> > >> >>> XZ_DEFAULTS >> >> >>>>
>>>, xz> >> >>> > >> > >> >>
>>> >>> >>>> >>>, >> >>> >>>
>>> >>>> >>>>>>
--memlimit=<>>>>>(>> -M <>>>>>)> > >>
>>> >> >>> >>>>.
>> >>> >>> >> >> >> >>> >>>>,
xz >>>>>> >>> >>>> >> >> >>>
>>>>>. >>> >>> > >> >> >>
>>> >>>> xz>>> >> >> >>> >>>
>>> >> >>> >>>(--format=raw >> >>
--no-adjust >> >>> >>). >> >> >> >>
>> >> >> > >>>> >>>> >>>
>>>> >>>>. >> >>>> >> >> >>
>>> >>>> >> > >>>>> >>>>>,
>>>>, xz -9 >> >>> >>> >>> >> >>
>> >>>, >> >> xz -8> >>>> >> >>>
>>>>>.
.xz >> >> > >>
.xz >>> >> >>> >> > >>>>. xz> .xz
>>> >> >>> > >> >>>>>>>.
>> >>> >>> >> >> >>> >>> >
>>>>. >>> > >>>> >>>> >> >>
>>> 4>>>> >>>> >>>. 512 >>>
>>>> >> >>> >>> >>> .xz >>>
>>>> >>> >>> > >>>>.
.lzma >> >> >> >>>> >> >>> >>>
>>>> >>>>.
>>
>> >>>> >> >
>> >>>> >>> >>> >>>>>, >
>>>> >>>> >> >>> >> >>>>
>>>>>. >>> >>> >>> >> >>>
>>> >>>>.
KiB 1,024 (2^10) >> >>>. Ki, k, kB, K, KB >>> KiB
>>>> >>>>>>.
MiB 1,048,576 (2^20) >> >>>. Mi, m, M, MB >>> MiB
>>>> >>>>>>.
GiB 1,073,741,824 (2^30) >> >>>. Gi, g, G, GB >>>
GiB >>>> >>>>>>.
>> > max> >>>> >>>> >> >> >>
>>> > >>> > >>>>.
>> >>
>> >> >>> >>>>>>>>>, >>>>
>>> >> >>> >>>>>.
-z, --compress
>>>>>. >> >> >> >>> >>>>
>> >> >> >>> >>>> >> >>>>
>>>> > >> >>> >>>>>(>: unxz >
--decompress> >>).
-d, --decompress, --uncompress
>>> >>>>>.
-t, --test
>> <>>>> >>>> >>>>>>. >
>>> >> >> >>>> >> >>>>
>>>> >> >>>> >> >>>>
--decompress --stdout> >>>>>. >> >>>
>>>> >>>> >>>>.
-l, --list
>> <>>> >>> >>>>>. >> >>
>>> >>>> >>>, >> >>> >>>>
>>>> >>>>. > >> >>>>,
>>>>> >> >> >> >> >> >>>>
>>>> >> >>>> >> > >>>>.
<>>> >> >>> >> > > > > >>>>
>>>>>. > >>> >>> >>> --verbose
>>> >>>>>>. > >>> >>> --verbose
>>> >> >>>> >>>, >> >>> >
>> >>>>> >> >>> >>>> >>>
>> >>> > >>>>. >> >> >>> 80
>>> >>>>, >> >> >>>
>>>>>>, >>>> >>> >>> >>
>> >> less -S >>> >>> > >>>>.
>>> >>> xz >>> >> >>> >> >>
> >>>>. >> >>> >>> --robot --list
>>> >>>>>.
>> >>>
-k, --keep
>> >>> >>>> >>>>.
xz 5.2.6 >>> > >>>> >> >>> >>
>>> >>>> >>> >>> >> >>>
>> >>, >>> setuid, setgid, >>> >>
>>> >>> >>>> >>>>> >>> >
> >>>>. setuid, setgid, >>> >>> >>
>>> >>>> >>>>. >> >>>>>
--force >>> >>>> >> >>>>>>.
-f, --force
> >>> >>> >>> >>> >>>:
o >> >>> >> >>>, >> >> >>
>> > >>>>>.
o >> >>> >> >>> >>>> >>>
>>> >> >>> >> >>, >>> setuid,
setgid, >>> >> >>> >>> >>>>
>> >> >> >>> >>>>>. setuid,
setgid, >>> >>> >> >>> >>>>
>>>>.
o --decompress --stdout >>> >> >>>>
>>>> xz >>> >> >>> >>>
>>>> >> >, >> >>> >>> >>
>>>> >>>>. >>> >> xzcat --force
>>> xz >>>> >>>> >> >>>
>> cat(1) > >>>> >>> >>> >
>>>>. >>> >>>, xz>> xz> >>>
>> >>> >>> >> >>>> >>>>
>> >>> >>>>> > >> >> >>>
>>> >>>>>. --format=<>>> >>> xz
>>> >> >> >>> >> >>>>>
>>> > >>> > >>>>.
-c, --stdout, --to-stdout
>> >> >> >>>> >> >> >> >>>
>>>> >>>>>. --keep> >>>>>>.
--single-stream
>> .xz >>>> >> >>>>, >>>>
>>>>> >>> >> >>>> >>>
>>>>>. >> >>>>> >>> >>
>>>> xz >> >>> >>>>>.
xz> .lzma >> >> >> >>>>> > >>
>>> >>>> >> >> >>>>> >>>
>>>, > >>> >>>> xz>> .lzma >>
>> >> >>>> >>> >>> >>>>>
>>>> >>>>> >>>.
> >>> >> >>> --decompress >> --test>
>>> >>> >>> >>> >> >>>>.
--no-sparse
>> >>> >>> >>>>. >>>>> >>
>>> >> >>> >> xz >>> >> >>>
>>> >> 0>> >> >>> >> >> >>
>>> >>>> >>>. >> >>> >>
>>>> >>> >> >>> >>> >>
>>>> >> >>> >>> >> >>>
>>> >>>> >> >>> >> >>>
>>>>>. >> >>> >>> >>> >>>
>>> > >>> >>> >>>> >> >>
>> >>> >> > >>>>.
-S .suf, --suffix=.suf
>>> >, >> >>> >>>> .xz >> .lzma
>> .suf> >>>>>>. >> >>>>
>>>> >> >> >>> .suf >>>>
>>>>>, >>> >>>> >> >>>
>>>>>.
>> >>> >, .suf >>>> >>>
>>>>> >>, .xz, .txz, .lzma, .tlz, .lz >>>>
>> >>> >>>>>. >> >>> .suf
>>>> >>>>>, >> >>>> >>>>
>> >> >>> >>>>>.
>> >>> >> > >> >>>(--format=raw)
>> >>>> >> >>>> >> >>>, >>
>>>> >>>> >> > >>>> >>>
>>>> >>>.
--files[=<>>>]
<>>>>> >>> >> >>> >>>>.
<>>>> >>>> >> >>> >> >>>>
>>>>>. >> >>> >> >>> >>>
>>>. >> >>(-)> >> >> >>>>
>>>> >> >>> >>>> >>>>. >>
>>> >>> >>> >>>>, <>>>>>
>> >>> >>>>> > >> >>> >>>
>> >>>>>.
--files0[=<>>>]
> >> >>> > >>> >>> >>> >>
>>>> --files[=<>>>] >>> >>>>>.
>> >> >> > >> >>
-F format, --format=<>>>
>> >> >>>> >> <>>>> >>>>>:
auto >> >>>>. >>> >, auto> xz> >>
>>> >>>>>. >>> >>> >,
>> >> >>> >>>> >>>>.
>>> >> >>>(--format=raw)> >>
>>>> >> > >>>>.
xz .xz >> >>>> >>>>>, >> >>>
.xz >>> >>>>>>.
lzma, alone
>> .lzma >> >>>> >>>>>, >>
>>> .lzma >>> >>>>>>. alone
>> >>> LZMA >>>> >> >>>>
>>>> >>>>>.
lzip >> >>> .lz >>> >>>>>>.
>>> >>>> >>>>.
.lz >> >> 0> >>> >> 1>
>>>>>. >> 0>>> lzip 1.3
>>>>> >>>>. >>>>> >>>
>> >>> >> > >>> >>> >>
>>>> >>> >>> >> >>
>>>>. >>>>> > >>>> >>>
>>> >> >>> >>> >> >>
>>>>. >> >> 0 >> >> >>>
lzip 1.18>> >>>>>>.
lzip 1.4 >>>>> >> 1>>> >>>
>>>>. >> >> 1>> >>> >>
>> >>> lzip 1.6> >>>>>>. >
>>> >> >> >>> xz >> >>>
>>>> >>>>(>>> >> >>>
>>>).
raw >> >>>>> >>>>> >>>
>>>>>(>> >>). >> >>>
>>>>>. >> >>>> >>>>>>,
--format=raw >>> >>>> >>>> >>
>>> >>>> >>>> >>> >>>
>>> >>>> > >>>>>.
-C <>>>>>, --check=<>>>>>
>>> >> >>> >>>>>. >> >>>
.xz >>> >>>> >> >> >>>>
>>>>>. > >>> .xz >>>> >>>
>> >>> >>>>: .lzma >>> >>>
>>> >>>> >>>>. >>> >>> .xz
>> >>> >>> >> >>>>>.
>> >> >>:
none >> >>>> >>> >> >>>
>>>> >>>>. >> >>>>> >>
>>>>>. >>> >>>> >>
>>>>>> >>>> >> >>>>
>>> > >>>>.
crc32 IEEE-802.3 (>>>)> >> >>>> CRC32>
>>>>>.
crc64 ECMA-182> >>> >>>> CRC64>
>>>>>. > >>> >> >>>>
>>> CRC32> >> >>> >> >>>>
> >> >>> >> >>> >>
>>>>.
sha256 SHA-256 >>> >>>>>. CRC32> CRC64
>>> > >>>>.
.xz >> >>>> >> CRC32> >>>>>. >>
>>>> It is not possible to change or disable it.
--ignore-check
>> >>>> >>>>> >> >> >>>>
>>> >>> >>>> >>>>. .xz >>>
CRC32 >> >>> >>> >> >>>>
>>>>>.
> >>> >>> >> >>> >>> >>
>>> >>>> >>>>. > >>> >>>>
>>> >>>:
o >> .xz >>>> >>> >>> >>>>>.
o >> >> >>> >>>>. SHA-256 >> >>
>>> >>> > >>>> >> >>
>>>>>. >> >>>> >> >>>>
>>>> >> >>> >>>> > >>>
>>>> >>> >>>>.
-0 ... -9
>> >> >> >>> >>>>>. >>>>
-6>>>. >> >>> >>>> >> >>>
>> >>> >>>>>. >> >> >>>
>> >>>>>, >> >> >> >> >>
>>> > >> >> >>> >>>>>.
>> >>> >>> gzip(1)> bzip2(1)> >>>
>>> > >>> >>>>>. >>> >>
>>> >> >>> >>> >>> >>>>
>>>>> >> >> >> >> >> >>
>>>> RAM >>> >> >>> >>>>>
>> >> >>> >>> > >>>>. >>>,
gzip(1) > bzip2(1)>> >> >> >> >>> -9>
>> >>>>> >>>>> >>>>.
-0 ... -3
>>> >> >> >> >>>>>. -0>
>>> gzip -9 >>>> >>>> >>
>>>>>> > >>>>. > > >>
>> bzip2(1) >>> >>>> > >>
>>> >> >>>> >> >>>>>>,
>>> >> >> >> > >> >>>>
>>>>.
-4 ... -6
>>> >>>>> >>> >> >>
>>>>> >>> >>> >>>>
>>>> >>>>> >>> >>>>
>>>>>. -6 >>> >> >>> >>>
>>>> 16MiB >> >>> >>> >>>
>>> > >>> >>> >> >>>>.
(-5e >> -6e> >> >>> >>>>.
--extreme> >>>>>>.)
-7 ... -9
-6> >>>>> >> > >> >>> >>
>>> >>>> > >>>>. >>
>>> >> 8MiB, 16MiB, 32MiB >> >
>>>> >>> >>>>>.
>>> >>>>>>, >> >> >>> >>>
>>>> >> >> >>> >> >> >>
>>>>>. >> >>, >>>> > >>>,
>> >> >>> >> >>>>>. >> >
>> >>> >>> >> >> >>> > >>
>>>>.
>> >> >> >> >>> >>>>>>:
Preset DictSize CompCPU CompMem DecMem
-0 256 KiB 0 3 MiB 1 MiB
-1 1 MiB 1 9 MiB 2 MiB
-2 2 MiB 2 17 MiB 3 MiB
-3 4 MiB 3 32 MiB 5 MiB
-4 4 MiB 4 48 MiB 5 MiB
-5 8 MiB 5 94 MiB 9 MiB
-6 8 MiB 6 94 MiB 9 MiB
-7 16 MiB 6 186 MiB 17 MiB
-8 32 MiB 6 370 MiB 33 MiB
-9 64 MiB 6 674 MiB 65 MiB
>> >>:
o DictSize> LZMA2 >>>> >>>>>. >>
>> >>> >>>> >>>>>> >>>>
>> >>> >>>>>. >>> >>>>
>> -7 ... -9 >> >>>> >>> >>
>>> >>>>> >>>. -6 >>>>>
>> >>> >> >>> >>> >> >>>
>>> >>>>.
o CompCPU> >> >>> >>> >> LZMA2 >>>
>>> >> >>>>. >>>> >>>
>>>> >>> >> >>> CompCPU> -6 ... -9
>>>> >>>>, >>> >> >>> >>
> >>> > >>>>. >>>> >>
>>>> >>> > > >>>>>. --extreme>
>>>>>>.
o CompMem> >>->>> >>>> >>> >>
>>>>> >>> >> >>>>>. xz
>>> >> >> > >>>>.
o DecMem> >> >> >>>>> >>>
>>>>>>>. >> >, >> >>
>>>>>> >>> >>> >>>> >>
>>>> >>>>> >>> >>>>>>.
>>> >> >> >>>>> >>>
>>>> LZMA2 >>>> >> >>> >>
>>> >>>> >> MiB >>>> >>>
>>>> >>>>.
>>->>> >>>> >>> >>> >>>
>>->>> >>>> >> > >>>>.
--block-size >>>> >>, > >>>>>>
3*3*>>>>_>> + >>>_>>>>> >>
>>_>>>_>>>>> >>> >>>>>.
>> >>, >>> >> >> >> >> -6>
>>>>>, 660-670 MiB >>> >>>
>>>>>.
-e, --extreme
>>>> >>> > > >> >>>> >>>>
>>> >> >> >> >>> >> >> >>>
>>>>>, >> >> >>> >> >> >>>
>>>> >>>. >> >> >>>>> >>>
>>>> >>> >> >>>, >> >>>>>
>>> >>>> -0 ... -3 >> >> >>>>
>> > >>> >>>>.
4MiB> 8MiB > >> >>>> >> >>> >>
>>> -3e > -5e >> >>> (CompCPU >>>
>>>) >> -4e > -6e >> >> > >>>
>>> > >>>>. >> >>> > >>
>>> >>>> >>>>.
Preset DictSize CompCPU CompMem DecMem
-0e 256 KiB 8 4 MiB 1 MiB
-1e 1 MiB 8 13 MiB 2 MiB
-2e 2 MiB 8 25 MiB 3 MiB
-3e 4 MiB 7 48 MiB 5 MiB
-4e 4 MiB 8 48 MiB 5 MiB
-5e 8 MiB 7 94 MiB 9 MiB
-6e 8 MiB 8 94 MiB 9 MiB
-7e 16 MiB 8 186 MiB 17 MiB
-8e 32 MiB 8 370 MiB 33 MiB
-9e 64 MiB 8 674 MiB 65 MiB
>> >>, 8MiB >>>>> >>>> >>>
>> >>> >>> > >, >> >>> >>>
>>>>>, -5, -6, -5e, -6e >>>.
--fast
--best > >>> -0 > -9> >>>> >> >>> >
>>>>. LZMA >>>>> >> >>>>
>>>> >>>>>. > >> >>>
>>>>>.
--block-size=<>>>
.xz >>>> >>> >, >> >>>> <>>>
>>> >>>> >> >>>> >>>>.
>>> >>> >>->>> >>>> >>> >
>> >> >> >> >> >>>> >>> >
>> >>>>> >> >>>>>. > >>>
>> >>->>> >>>> >> >> >>>
>>> > >>>>>, >>->>> >>>>>
>>> > >>>>.
>>->>> >>>>> > 3> >>> <>>>
>>>>> > >>> >> >>> >>>>
>>> >>>>>. >> <>>>> LZMA2
>>>> >> >> 1MiB > >> > >> >
>>>>. >> >>> >>> LZMA2 >>>>
>> >> >>> 1MiB >>> 2-4>>>>. LZMA2
>>>> >>>> >> <>>>> >> >>>
>> >>>> >>>>> LZMA2 >>>> >>>
>>> >> >> >>> > >>>> >>
>>>>>. >>->>> >>>> >> >>>
>> >>> >>>>, > >> >>>
>>->>> >> >>> >>>>>.
>>->>> >>>>> >>>>> >>
>>>> >> >>>>. > >>> >>>>>
>> >>> >>> >>> >>> >>>>.
>> >>> >> >>> >>>> >> >>>
>>->>> >>>> >> >>> >>->>>
>>>> >> >>> >>>> >>>>. >>
>>> >>> >> xz>> >>->>> >>>
>> >>> >>> > >>> >>>>>
>>>.
--block-list=<>>>
.xz >>>> >>> >, >>>> >> >>>>
>> >> >> >>> > >> >>>
>>>>>.
<>>>> >>> >>> >>>> >>>>>.
> >>> >> (:)>> >>> 0>> 9>>>
>> >> >> >> >>> >>>> >>>,
>>>> >> >>>> >> >> >>>>>.
>>> >>>>(> >>> >> >> >>)
>> >>> >>> >>> >>>>>> >>
>>> >> > >>>>.
>> >>> <>>> >>> >>> >>, >>>
>>> >>> >>> >>>>>. >>> 0
>> >>> >>> >>>> >> >>>
>>> >> >>>> >>>>> >>>
>>> >>> >> >>>>.
--filters1=<>>> ... --filters9=<>>> >> >>>>
> >>> >> >> >>> >>> >
>>>>. > >>> 1-9> >> >>>
>>>>>. >> >> 0>> >> >>>
>>>> >>> >> >>> >> >>
>>>> >>> > >>>>. >> >> >>
>>> > >> >> >> >>(:)> >> >>>
> >>>>. >> >>,
--block-list=1:2MiB,3:2MiB,2:4MiB,,2MiB,0:4MiB >>>
>>>> >> >> >>>> >>> >>>>:
o --filters1 >> >>>>> 2MiB >>>
o --filters3 >> >>>>> 2MiB >>>
o --filters2 >> >>>>> 4MiB >>>
o --filters2 >> >>>>> 4MiB >>>
o >> >> >>>>> 2MiB >>>
o >>> >>> >> >> >>>> >> >>
>>> 4MiB >>> >>>>>.
>>> >> >>> >>>> >> >>
>>>>(>>> >> >>> >>
--block-size=<>>> >>>> >>> >), >>>>
<>>> >> >> >>> >>>>> >>
>>> >>>>. >> >> --block-size=10MiB
--block-list=5MiB,10MiB,8MiB,12MiB,24MiB >>> >>>>
>> >>> 80MiB >>>> >>>>, >> 5, 10,
8, 10, 2, 10, 10, 4, 10, 10, 1 MiB >>> >>>> >>
11>> >>>> >>>>.
>>->>> >>>> >> >>> >> >>>
>>>>>. >>->>> >>>>> >>>>
>> >>> >>> >>> >>> >>->>>
>>> >> >>>>> >>>>.
--flush-timeout=<>>>>>
>>> >, >> >>>> >>>> >> >>>
>> >>> > >>> <>>>>> >>>(>>
>>>)> >>> >>, >>>>> >> >>
>>>> >>>>> >>> >> >>
>>>> >>>>>. >> >>> >>>>>
>>>>> >>>> xz> >>> >
>>>>>. <>>>>> >> >> >>>>
>> >> >>> >>>> >>> > >>>
<>>>>> >> >> >> >>>> >> >
>>>>.
> >>> >>>>> >>>>>>. > >>>
>> >> >>>>, >>> >>> >>>
>>>>>. >>> <>>>>> >> 0>>
>>>> > >>> >>> > > >>>>.
> >>> POSIX >>>> >> >>>> >>>
> >>>>.
> >>> >>> >>>>>>. >>>>>, xz
>>> >> >> >>> xz> >>> >>>
>> >> >> >>> >>>> >>>>.
--memlimit-compress=<>>>>>
>> >>> >>> >> >>> >>>>>.
> >>> >>> >>>> >>> >>
>>>>.
>> >>> <>>>>>> >>>>, xz> >>
>> >> >>> >>>> >> >> >>>
>>> >> >> >> >>> >>>> >>>
>>>>>. >>> >> >>>> >>>>>.
>>> >> >>>>. >>->>> >>>>
>>> >>> >> >>>> <>>>>>>
>>> >>->>> >>> >>>>>. > >>
>>>>> LZMA2 >>>> >>> >>>>.
--format=raw >> --no-adjust >>> >>>> >>>
>, >> >>> >>> >>> >> >>
>>> >> >> >> > >>>>.
<>>>>> >> >> >>> >>> >>
>>>, >>> >>>> xz >>> >> >>
1>> >>>> >>>>>>.
<>>>>> >> >> >>>> >>> >
>>>>:
o <>>>>> >> >>> >> >>>>>>.
>> >> >>>> MiB> >> >>>>
>>>>> >>>>. >: --memlimit-compress=80MiB
o <>>>>> >> > >> >>>(RAM) >>>
>>>> >>> >> >>>>. >>
>>>>> >>>> > >>> >>>>>
XZ_DEFAULTS >> >>> >> >>> > >>
>>>>>. >> >>>> >>>>
>>>> >>> >> >>> >> >>>>
>>>>>. >: --memlimit-compress=70%
o <>>>>> >> 0 >>>>> >>>>
>>>> > >>>>. >>>>>
<>>>>> >> max(>>) (>>> >> >>
>>) > >>> >>>>>.
xz 32>> >>>>> >>> >>> >>>
>>>>. <>>>>> >> 4020MiB> >>>
<>>>>>> 4020MiB> >>>>>. MIPS32>>>
2000MiB> >> >>>>>. (0> max> > >>>
>>>> >>>>. >> >>> >>> >>>
>>>>.) > >> 32>> >> >>>
4GiB(MIPS32> >> 2GiB) >> >>> >>> >
>> >>>>, >> >>>> >>>>>
>>> >>>> >>>>.
>>> >> >>> >>>>>>.
--memlimit-decompress=<>>>>>
>> >>> >>> >> >> >>>
>>>>>. --list >>>> >>> >>>.
<>>>>>> >>> >>>> >>> >>>
>> >>, xz >>> >>> >>>> >> >>
>>> >>> >>>>>. <>>>>>>
>>>> >>> >>> >>>>
--memlimit-compress=<>>>>> >>> >>>>>>.
--memlimit-mt-decompress=<>>>>>
>>->>> >> >> >>> >>> >> >>
>>> >>>>>. >>> >> >>> >
>> >>>>. xz>> >> >> >>>
>>>> >> >>>>. <>>>>> >>>
>>->>>> >>>>> >> >>>,
<>>>>> >> >>>> xz >>> >>->>>
>>> >> >>>>>. >>>
--memlimit-decompress >>> >>>>, >>->>>
>>> >>->>> >> > >>> >>
>>>>>, >>->>> >>> >>>
<>>>>> >> --memlimit-decompress> >>>>
>> >>> > >> >>>>.
>> >>> >> >> >> >>>> >>,
--memlimit-mt-decompress=<>>>>> >>> >>>>
>> <>>>>> >> >>>>. >> >> >>
xz --info-memory >>>> >>>> > >>>>.
> >>> >> >> >> >> >> >>>
>>> >> >> >> >>>>> >> >>
>>> >> >>>> >>> >>> >>>
>>>> >>> >>>> > >>>>. >>
<>>>>>> >>>> >>> >> >>>,
<>>>>> >> >>>> >>>>, xz >>
>> >>> >>> >>> >> >>>
>>>> >>, >> >>> >>> >>>>
>> RAM >>> >> > >> >>>>
>>>>. >>>> >>> >> >>>
>>>> >>>> >>> >>>> >>>>.
<>>>>> >> >>>> >>> >>> >>>
--memlimit-compress=<>>>>> >>> >>>>>>.
<>>>>> >> 0>> >>>> <>>>>> >>
>>> >> >>>>> >>>>.
-M <>>>>>, --memlimit=<>>>>>, --memory=<>>>>>
--memlimit-compress=<>>>>>
--memlimit-decompress=<>>>>>
--memlimit-mt-decompress=<>>>>> >>>
>>>>>.
--no-adjust
>> >> >>> >>> >> >>> >>>>
>>> >>> >> >> >> >>> >>
>>> >>> >>>> >>>>>>. >
>>> xz> >>->>> >>>> >>->>>
>>> >>>> LZMA2 >>>> >>> >>>
>>> >>>>>. >>> > >>> >>>>
>>> >> >>> >>>>> >>> >>
>> >> >>> >>> >>> >> >>
>>>.
>> >>>(--format=raw)> >> > >> >>>
>> >>>>.
-T <>>>>>, --threads=<>>>>>
>>> >> >>> >> >>>>>.
<>>>>> >> 0 >>> >>>>, xz>
>>>>> >>>> >> >>>> >>>
>> >> >>>>>. >> >>> >> >>
>>> >>> >>>> >>> >>> > >>
>>> >> >> >>, >>> > >>
>>>> >>>> > >>> >>> >>>
>>> >> <>>>>> >> >> > >>>>.
>>->>>> >>->>> >> >>>>>
>> >> >>>> >>>. >>->>> >>
>>>>> >> >> >> >>>> >>>>,
>>->>> >> >>>>> >> >>->>>
>> >>>>>> >>> >>>>
>>->>>>> >>> >>> > >>>>.
<>>>>>> 1> >>>> >>->>> >>>
>>>>>. <>>>>>> 0> >> >>>
>>>>, >>>>> >>> >>>>
>>>> 1>> >>>> >>>>, >>->>>
>> >>>>> >>>>>. (xz 5.2.x>>> >
>> >>->>> >>> >>>>>.)
>>->>>> >>->>> >>> >>>>>,
<>>>>>> +1> >>>>>>. + >>>> 1
>>> >>> >>> >> >>>>. >>>
>>> >> >>> xz> --no-adjust >>> >>
>>>> >>->>>> >>>> >>>. +
>>> >>> xz 5.4.0> >>>>>>.
>> >>> >> >>>> >>> >> >>>
>>>> >>>>, >>>> >>> >>>
>>> >> >>>> >> >>> >> >>
>>>>>. >>> >> >>> >> >>>>
>> >>> >>> >>>>>, xz> >>>
>> >> > >> >> >> >>> >>>
>>>>. > >> >>> >> >> xz >>
>> >>->>> >>>> >>->>> >>>
>>> >>> >>>>. >> >> >> xz
--info-memory >>>> > > >>>>.
>> >>> >> >>> >>> >> >>>
>>> >>> >>> >>>>> >>>>
>>> >>>>. >> >> >>> >>
>>> >> >>> --block-size=<>>> >>>>
>>>> > >>>>.
>>> >> >> >>> >> >>> >>
>>> >> >> >>> >> >>> >>>>
>>>>>. >>->>> >>>> >>>
>>> > >> >>> > >>> >>>>>,
>>->>> >>>> >>> >>>
--block-size=<>>> >>> >>>>>> >>>
>>>> >>>>.
>>> >> >> 0>>>. xz 5.4.x >>>
>>>> 1>>>.
>> >> >> >> >>
>> >> >>> >> >>> >> >>> >>>>
>> >> >>> >>>>> >>>> >>> >
>> >>>. >> >> >>> >>>>, >>>>
>> >>> >> >> >>(-0 ... -9 > --extreme)>
>>>>>. >> >> >>> >> >>> >>
>> >> >>> >>>>, > >> >>> >>>,
>> >>> >> >> >> >>> >>>>>.
>> >>> >>> >>>> >>> > >>>>.
>>> >, >>>> >> >>> >>> >>>
>>, >> >>(> >>>)> >> >>>
>>>>>. >> >>> >>> >> >>>
>>>>>. >>> >> >> >> 4>>>, >>
>>> >> >>> >> 1~2>>>>.
>>> >>> >> >> >>> >>>> >>>
>>>>. >> >>> >>> >>> >>>>
>>>>, >> >> >>> >>>> >> >>>,
>> >>> >>> >> >>>> >>>. >>>
>>, > >>> >> >>> >>>> >> >>>
>> >> >>>>> >>>.
>> >> >>> >>> >>>> >>> >
>>>>. --filters=<>>>> --filters1=<>>> ...
--filters9=<>>> >>>> liblzma >> >>> >>>
>> >>> >>> >> >> >>> >>> >
>>>>. >>, >> >>> >> >> >>>
>>> >> >> >>>> >>> >> >>>>.
> >> >>, >> >> >>> >>> >>>>
>>>>! >> >>>> >>>> >(--format=raw),
>>>> > >>>> >>> >> >>> >>
>>> >>>> >>>. >> >>
>>(--filters=<>>>) >> >> >>> >> >> >>
>> >> >>> >>> >> >>>>. >> >>
>> >>> >> >>> >>> >> >> >>>
>>> >>> >>>.
>>> >>> >>>> >>> <>>>> >>>>.
<>>>> >>> >>> >>> >>>>>. >>
>> >>> >>>> >>, >> >>>>
>>>>>>>.
>> >> >>> <>>>> >>> xz -vv (--verbose >
>)>>> >>>>>>. > >>> >> >>>
>>>> >> >> >>> > > >>>>.
--filters=<>>>
>> >> >> >> >> >>> >> >>>>
>>>>>. > >>> >> >> >> >>
>> >> >>(--)>> >>>>>. >
>>>>> >>> >>>> >>> >>
>>>> >>>>> >> >>>. >>>
>>>>> : >> => >>>>>>. >> >>
>> -> >> > >> 0> >> >> >>>
>>>> >> > >>>>. >>>> >>>>
>>>> --extreme> >>> e>>>.
--filters1=<>>> ... --filters9=<>>>
--block-list> >>> > >> >> >> >>>
>> 9>>> >>>>>.
>> >> >>> >>> >> >>>
>>>>> >>> > >> >>> BCJ >>
>>> >>>> >>> >>> LZMA2 >>>
>>> > >>>>.
--filters-help
--filters> --filters1=<>>> ... --filters9=<>>>
>>> >> >> >>> >> >> >> >>>
>>>> >>> >>>> >>> >>>>
>>>> >>> >>>>>>.
--lzma1[=<>>>]
--lzma2[=<>>>]
LZMA1 >> LZMA2 >>> >> >>> >>>>>.
> >>> >> >>> >>> >>>> >>>
> >>>>.
LZMA1> >> >>>, LZMA1> >>>> >> .lzma
>> >>>>> >>>>>. LZMA2> LZMA1>
>>>> >>>> LZMA1> >>> >>>
>>>>>>. .xz >>> LZMA2 >>> >>>>
LZMA1 >>> >>>> >>>> >>>>. >>
>>> >>>> LZMA1> LZMA2> >>>>>
>>>>>.
LZMA1> LZMA2> >>> <>>> >>> >>>>>:
preset=<>>>>>
LZMA1 >> LZMA2> >> <>>>>
<>>>>>>> >>>>>>. <>>>>>
>> >> >>> >>>> >>>, >>
>>> >>> > > >> >>> >>>
>> >>>>. >> >> 0>> 9
>>>>, >>> >>>> -0 ... -9>
>>>>>. >> >>>> >>>>
>>> >> e >>>, --extreme>
>>>>>. <>>>>> >> >>>>
>>>, LZMA1 >> LZMA2 >>>> >> >>
6>> >>> <>>>>> >>>>.
dict=<>>>
>>>>(>> >>) <>>>> >> >>>
>>> >>>> >>> >>> >>>>
>>> >>>>> >>>>>.
>>>>> >>> >>>> >>>
>>>(>> >>) >> >>> >>>>,
>> >>> >>>>> >> >>>
>>>>>. >>>>> >> >>>>
>>> >> >>> > >>>>>.
>>>, >>>> <>>>> >> >>
>>>> >>>> >>> >> >>>,
>>>> >> >>>> >>>>> >>
>>> >>>> >>>>>.
>> >>>> <>>>> 64KiB >> 64MiB >>
>>>. >> 4KiB >>>. >>> >>
>>> >> 1.5GiB(1536MiB)> >>>>>.
>> >> >>>>>> 4GiB >>>>
>>>> >>> >> >>>> 4GiB >>
>>> LZMA1> LZMA2 >>> >>>
>>>>>>.
>>>> <>>>> >>>(mf)> LZMA1 >>
LZMA >>>> >>> >>>> >>
>>>>>. >>>(>> > >) >>>>
<>>>> >>>> >>>> >>> >>
>>> > >>>> >>>, >>>>
>>> >>>> >>> >> >>>>
>>> >>>>>. .xz >>>> >>>>
<>>>> 2^n >> 2^n + 2^(n-1) >>
>>>>>, > <>>> >> >>> >
>>>> >>>>. >> <>>> >> .xz
>>> >>> > >>>>>>.
lc=lc >>> >>>> >> >> >>>>>.
>> >> 0>> >> >> 4>>>. >>
>> 3>>>. >>>, lc >> lp >> >>
4> >>> >>>>.
>>> >>>> >> >>>> > >>
>> >>>> >>>> >>>>>>. >
>> >>, >>> 8>> >>>>>>
>>>> >>> >>> >>>>>>.
>>> >>> > > >> >>> >>>>
>> >>>>> >>>> >> >> >>
lc >> >> >>>>>. >> >>, >>
>> >>> >> >>> >>> >>
>>>> >>, >>> >>> >>
>>>> >>>>>. US-ASCII >>
>>>>> >> > >> 3>> >>>>
>> 010, >>>> >> 011>>>. lc >>
>>> 3>>, >>> >>> >>>
>>>> >> >> >>> >>> >> >
>>>>.
(>>>>) >>> (3)> >> >>>>>.
>> >>> >>>> lc=4 >>
>>>>>>>. >>> >> >>>
>>> >>>>, >>> >>> >>>
>> >>>>. >>> >> >>>>
>>>, lc=2 >> >>>>>>>.
lp=lp >>> >> >> >> >>>>>. >>
>> 0>> >> >> 4>>>. >> >>
0>>>.
lp >> >>> >>> >>> >>>
>>> >> >> >>> >>> >>>.
>> >>> >> >>> >>> >> pb>
>>>>>>.
pb=pb >> >> >> >>>>>. >> >>
0>> >> >> 4>>>. >>>>
2>>>.
pb >> >> >>>> >> >>>> >>
>> >>> >>>>>> >>> >>>.
>>>>> 4>>> >>(2^pb=2^2=4)>
>>>>>, >>> > >> >> >>
>>> >> >>> >>>> >>>>>.
>> >>> >> >> >>, pb >> >>
>> >>> >> >> > >>>>. >>
>>, >>> >>> >> >>> >>>
>>> >>(US-ASCII, ISO-8859-*, UTF-8)>>, pb=0
>> >>> >>>> >> >>> >
>>>>. UTF-16 >>>> >>, pb=1 >>
>> >> >>>>>. >> >>>> 3
>>> >> >> >>>> >>, pb=0 >>
>> >>> >>>>> >>>>.
>> >>> pb >> lp >>> >>>>
>>>, LZMA1> LZMA2> >>> 16>>> >>
>>>> >>>>>. LZMA1 >> LZMA2>
>> >>>> >> >>>>> >>
>>>>> >>>.
mf=mf >> >>>> >>> >>, >>>
>>>, >>>> >> >>> >>>.
>> >> >> >>>> >> >>
>>>>> >>> >>>. >> >>
<>>>>>> >> >>>>. 0> hc3>,
1-3> hc4>, >>>> bt4> >>>>>.
>> >> >>> >>>>>. >>>
>> >>> dict >> 2> >>> >>
>>> >>> >>>>>>.
hc3 2>>>, 3>>> >> >>
nice >>>: 3
>>> >>:
dict * 7.5 (>>: dict <= 16 MiB);
dict * 5.5 + 64 MiB (>>: dict > 16 MiB)
hc4 2>>>, 3>>>, 4>>> >> >>
nice >>>: 4
>>> >>:
dict * 7.5 (>>: dict <= 32 MiB);
dict * 6.5 (>>: dict > 32 MiB)
bt2 2>>> >> >> >>
nice >>>: 2
>>> >>: dict * 9.5
bt3 2>>>, 3>>> >> >>>>
nice >>>: 3
>>> >>:
dict * 11.5 (>>: dict <= 16 MiB);
dict * 9.5 + 64 MiB (>>: dict > 16 MiB)
bt4 2>>>, 3>>>, 4>>> >> >>
>>
nice >>>: 4
>>> >>:
dict * 11.5 (>>: dict <= 32 MiB);
dict * 10.5 (>>: dict > 32 MiB)
mode=<>>>
>> <>>> >> >> >>>>>
>>>> >>> >> >>> >>>>>.
>>>> <>>>> fast> normal >>>.
>>>> <>>>>>> 0-3> >> fast,
<>>>>>> 4-9> >> normal>>>.
>> fast> >> >> >>>>> >>>>
normal> >> >> >>>>> >>>>>.
> >>> >> <>>>>> >> >
>>>> >>>.
nice=nice
>>>> nice >>> >>>>>. >>>
nice >>> >> >>>>, >>>>>
>>> >>> >>> >> >>>
>>>>.
nice >> 2-273 >>>>>>. >> > >>
>> >>>> >>> >>>> >>>>
>> >>>>>. >> >>
<>>>>>>> >> >>>>.
depth=<>>>
>> >>>>>> >> >> >>>
>>>>>. >>>> >>> > 0>>
>>>>, > >>> >> >>>>> mf >
nice> >>> <>>> >> >>>>>.
>>> >> >> <>>> >> >>
>>>> 4-100 >>> 16-1000 >>>. >>>
> >> <>>> >>> >>>> >>
>>> >> >>>> >> >>> >>>
>> >>>>. >> >>> >>
>>>>> >>> >>> >> >>>
>> >> >> <>>> >> >> 1000>
>> >>>>>>.
>> >>>(--format=raw)> >>>> >, LZMA2>
>>>> <>>>> >>>>>. LZMA1> lc, lp, pb
>> >> >>>>>.
--x86[=<>>>]
--arm[=<>>>]
--armthumb[=<>>>]
--arm64[=<>>>]
--powerpc[=<>>>]
--ia64[=<>>>]
--sparc[=<>>>]
--riscv[=<>>>]
>>>/>>/>>(BCJ) >>> >> >>>
>>>>>. > >>> >> >>> >>>
>>>> >>> > >>>>.
BCJ >>> >> >>> >> >>> >> >>>
>>>>>. >>> >>> >>>> >>>
LZMA2>> .xz >>> 0-15% >> >>>> >>
>>>> >>>>>. BCJ >>> >>> >>>
> >>, >>>> >>>> >> BCJ >>
>>> >>>>, >> >>> >> >>>>
>> >>>> >> >>>>, >>>> >>
>> >>>>. BCJ >>> >>> >>>
>>> >>> >> >>>>>.
> BCJ >>>> >>> >> >>> >>>
>>>>:
o >> >>> >>>> >>> >> >>(>:
>> >>, >> >>>>>, >>> >>
>>)> >> >> >>> >> >> >>>
>>>>. >> BCJ >>> >> >>>
>>>> >>>>> >> >>>
>>>>>.
o BCJ >>> >>>>> >>>>, BCJ >>>
>>>> >>> >>> >>>> >>>
>> >>>>. >> >>, >>>>>
>>> >> >> >>> >>> >>>
>>>> >>> > >>>> >>>
>>>> >>>> >>>. >>> >>>>
>>>> > >> >>> >>> >>>>
>>> >> >>> > >>>>. >>>
>>> BCJ >>> >> >>> >>>> >
>>> >> >> >>> >>> >>> >
>>>>>>>.
>> >> >>> >> >> >>>
>>>>>>. >> >>> >>> >>>
>>>> >>> >> >>>> >> > >>
>>> >>>>>>>.
>> >> >>
x86 1 32-bit >> 64-bit x86
ARM 4
ARM-Thumb 2
ARM64 4 4096 >>> >>> >> >>>>
PowerPC 4 >>>> >>
IA-64 16 Itanium
SPARC 4
RISC-V 2
BCJ >>> >>> >>>> LZMA2> >>
>>>> >>> LZMA2 >>> >>> BCJ >>>
>>>>> >>>> >>>> >>>> > >
>>> > >>>>. >> >>:
o IA-64 >>> 16->>> >> >>>>
>>>>> LZMA2 >>> pb=4,lp=4,lc=0
>>(2^4=16)> >>> >>>>.
o RISC-V >>>> 16->> >> >>(C >>) >>
>>> >> 2->>> >> 4->>> >>
>>> >>>>>. 16->> >>> >>>>,
pb=2,lp=1,lc=3 >> pb=1,lp=1,lc=3 >> > >>>
>>>>>>. 16->> >>> >>>,
pb=2,lp=2,lc=2 >> >> >>>>> >>>>.
"RVC"> "Flags">> >>>>> >>> > readelf
-h >>> >>> > >>>>.
o ARM64> >> 4->>> >> >>> >>>>
pb=2,lp=2,lc=2 >> >> >>>>> >>>>.
o x86 >>> >>>>>. x86 >> >>>
>>> >>>> >> LZMA2 >> >>
>(pb=2,lp=0,lc=3)> >>> >>>>>
>>>>.
>> BCJ >>> >>> >>> >>>>>:
start=<>>>>
>> >>> >> >>> >>> > >>>
>> <>>>>> >>>>>. <>>>>>>
>> >> >>>> >>>(>> >>>
>>). >>>> 0>>>. >>>
>>>> >>>>. >> <>>>> >>
>> >> >>> >>>>.
--delta[=<>>>]
>> >>> >> >>> >>>>>. >>
>>> >> >>>> >>>> >>>> >>
>>>> >>> > >>>>.
>>>>> >>> >> >> >>>> >>>
>>>>>. >> >>, >>>> >> >>>
>> >> >>>> >> PCM >>>> >>> >
>>>>>. >>> >>> >>>> >>>>
>>>>> >> + LZMA2 >> > >> >>>
>>> >>> >>>. >> >> >>>>
>> >> >>>>>, flac(1)> >> > >>>
>>> >>>> >>>>>.
>> >>:
dist=<>>>
>>> >> >> >> <>>>>
>>>>>. <>>>>> 1-256
>>>>>>. >> >> 1>>>.
>> >>, dist=2 >>> A1 B1 A2 B3 A3 B5 A4 B7
>> >> >>, >> >> A1 B1 01 02 01 02 01
02 >>>.
>> >>
-q, --quiet
>> > >>> >>>. > > >>>> >>
>>> >>> >>>. > >>> >> >>>
>>> >> >>>>. >> >>> >>>>,
>> >>>>> >>> >>> >>>>>
>>>>>.
-v, --verbose
>> >>> >>>>>. >> >>> >>>>
>>>>> xz> >> >>> >>>>>.
--verbose> >> >>>> > >> >>>
>>>>>.
>> >>>>> >> >>> >>>>>:
o >> >>> >>> >> >> >> >>
>>>. >>> >>>>> >>>> >>>
> >>>>.
o >> >> >>> >> (>>) >> >> >>
>> (>> >>).
o >>> >>> >> >> (>>) >> >>
>> (>> >>).
o >> >>> >> >>> >>> >>> >>
>>>> >>> >>> >>>.
o >> >> >> >> >>. >> >>>
>>> >>>(>>) >> >> >>(>>
>>)> >>> >>>>. xz>> >> >>>
>>> > > > >>>>>.
o >> >> >>> M:SS >> H:MM:SS >>>.
o >> >> >>> xz> >>> >>>>
>>> >> >> >>> >>> >> > >>
>> >>> >>>>>. >>> >> >>>
>>>> >> > >>> >>>>, >>
>>, 2> 30> > >> >>>> >>>>>.
>> >>> >>>> >>>> --verbose> xz>>
>> >>, >> >>, >> >> >>, >>>,
>>> >>>>> >>> >> >> >>
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>>>> >>>>>. >>> >>> >>>>,
>>>> >>>> >> >>> >>> >>
>> >>> >>> >> >> > >> >>>
>>> >>>>>.
-Q, --no-warn
>>> >> >> >>> >>> >>>> >>
>> 2>> >>>> >>>>. > >>> >>
>>> >>> >> >> >>>, --quiet >>>
--no-warn >>> >> >>> >> >> >>>
>>> >> >>>> >>>>>.
--robot
>>>> >>> >>>> >>>>
>>>>>. liblzma >> xz> >>>>> >>>
>>>>>>> >>>>>> >> >>>>>
>> >>>>>. > >>> >>> >>> xz
>>>> >>> >> >> >>>>
>>>>>. >>> >>> >> >> >>>
>>>>>>.
--info-memory
>> > >> >>> >> >>> >> (RAM),
xz>> >>>> >>>> >>> >>, >>>
>>> >>> >>>> >> >>>>
>>>> >>> >>>>.
-h, --help
>> >>>> >>> >>>> >>>
>>>> >>> >, >>> >>>>>>.
-H, --long-help
xz> >> >>> >>>> >>> >>>>
>>> >, >>> >>>>>>
-V, --version
xz> liblzma >> >>> >> >>>>
>>>>>. >> >> >> >>> >>>>>
--version >> --robot> >>>>>>.
>> >>
>> >>> --robot >>>> >>>>>. xz >>>
>> >>>>>> >>>> >> >>>>.
>>>>> --robot >>> --list, --filters-help,
--info-memory, --version >>>>> >>> > >>>>.
>>>> >> > >> >> >>> >>>>
>>>>>.
>> >>
xz --robot --list >>> >>> >>> >> >>>
>>>>>. >> >> >>> >>>> >> >>>
>> > >> >>> >>> >>>>>:
>> > >> >> >> >> >> >>> >>>
>> >>>>. > >> >>> >>> >>
>>> >>>>>>.
>> > >>> .xz >>> >>>> >>>
>>>>>>. > >> >> >> > >>>
>>>>.
>>>
> > >>> --verbose >>> >>>> >>
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>> > > >>> --verbose >>> >>>> >>
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>>>>.
>> > > >>> --verbose >>> >> >>>> >>
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.xz >>> >>>> >>> >>>>>>.
>> > >> >> >>> >> >>>> >>
>>>>>. > >>> >>> >>>>>.
>> > >>:
2. >> >>> >>
3. >>>> >> > >>
4. >> >> >>
5. >> >> >> >>
6. >> >>, 0.123> >> >>> >>>.
>>> 9.999>>, >> >> 3> (---)> >>
> >> >>>>>.
7. >>> >>> >>> >> >> >>>>>.
None, CRC32, CRC64, SHA-256 >>>> >>> >>
>>>> >>>>>. > > >> >>
>>> >>>> Unknown-N> >>>>, >>>
N> (> >>>) >>> >>>>> >>>>
>> ID >>>.
8. >>> >>> >> > >>
>>> > >>:
2. >>> >> (> >>>> 1>)
3. >>>> >> > >>
4. >> >> >>>
5. >>> >> >>>
6. >> >> (>>> >> >>>)
7. >> >> >>
8. >>>
9. >>> >> >>
10. >>> >> >>
>> > >>:
2. > >>> >>> >>> >>
3. >>> >> >>> >> >> (>>>
>>> 1>)
4. >> >> >>> >> >>
5. >> >> >>> >> >> >>>
6. >> >> >>> >>> >> >>>
7. > >> >> >> (>> >>)
8. >> >> >>
9. >>>
10. >>> >> >>
--verbose> > > >>>>, >> >>> >> >>
>>>>. --verbose >> >>>>> > >>> > >
>>> >>> >>>> >> >>> >> >>>
>>> > >>> >>>> >>>>:
11. 16>> >>> >>>
12. >> >> >>
13. >> >>>: c> >> >>> >> >>>
>>>>, u> >> > >> >>> >>
>>> >>>>>. >>>> >>>>
>>>>, >>> >>> >>> >>>>
>> - > >> >>>>>. > >>>>
>>> >>> > >>> >>> >>>>>.
14. >>> >> >> >> >>>> >> >>
(>> >>, >> >>, >> >> >>)
15. > xz >>>> > >>> >>> >>> >
>>> (>>> >>) >>> >>
16. >> >>. >>> >>>> >>> >>
>>> >>> >>>> .xz >>> >>>>
>>> >> >>> > > >>>>.
>> > >>:
2. > xz >>>> > >> >>> >>> >
>>> (>>> >>) >>> >>
3. >> >> >>> >> >>> >> > >>
>> >>> >>>>> >>> >>>> yes
>> no >
xz 5.1.2alpha >>:
4. >> >> >>> >>> >> xz >>
>> > >>:
2. >>> >>
3. >> >>
4. >> >>
5. >> >> >>
6. >> >>>
7. >>> >> >> >>> >>> >>> >>
>> >>
8. >>> >> >>
9. >> >>. >> >> >> >>>
>>>>>.
--verbose >>> > > >>>>, >> >> >>
>>> >>>>>:
10. > xz >>>> >> >>> >>> > >>>
(>>> >>) >> >>> >>>
11. >> >> >>> >> >>> >> > >>
>> >>> >>>>> >>> >>>> yes
>> no >
xz 5.1.2alpha >>:
12. >> >> >>> >>> >> xz >>
>> >>>>> > > >>> >>>> >> >
>>> >>> > >> > >>> >> >>> > >
>>>>, >> >>> >>> >> >>>>>.
>> >>>
xz --robot --filters-help > >> >>> >> >> >>>
>>>>>:
<>>>:<>>>=<>>,<>>>=<>>...
<>>>
>> >>
<>>>
>>> >> >>
<>> >> > >>> <>>->>>>>>. >>> >>
< > >> >>> >>>> | >>> >>>>>.
> >>> > >> >>> >>>>>.
>>> >> >>
xz --robot --info-memory >>> >>> >> >> >>>
>> >>> >>>>>:
1. >> >>>(RAM)> >>> >> >>.
2. >> >>> >>> >> >>> >> >>>
(--memlimit-compress). >> > 0> >>->>>
>>>> >>> >> >> >> >>>>
>>>>>.
3. >> >>> >>> >> >>> >> >>>
(--memlimit-decompress). >> > 0> >>->>>
>>>> >>> >> >> >> >>>>
>>>>>.
4. xz 5.3.4alpha >>: >>->>> >> >> >>>
>>> >> >>> >>>(--memlimit-mt-decompress).
>>>> >>> >>>> >>> >> 5>>
>>> >>> >>>> >>>> >>>>
>>> 0 >> >>>> >>>>. >>
--memlimit-mt-decompress> >>> >> >>> > >>
>>> >> >>>> > >> >>> >> >>>
>> >>>>.
5. xz 5.3.4alpha >>: A system-specific default memory usage limit
that is used to limit the number of threads when compressing with
an automatic number of threads (--threads=0) and no memory usage
limit has been specified (--memlimit-compress). This is also used
as the default value for --memlimit-mt-decompress.
6. xz 5.3.4alpha >>: Number of available processor threads.
>>, xz --robot --info-memory >>>> > >> >>>
>>>>>, > > >>> >>>> >>>>.
>>
xz --robot --version > xz > liblzma> >> >>> >>
>>>> >>>>>:
XZ_VERSION=XYYYZZZS
LIBLZMA_VERSION=XYYYZZZS
X > >>.
YYY > >>. >>> >> >>>>>. >>> >>
>> >> >>>>>.
ZZZ >> >>>> >> >> >> >> >>>>
>>>>>.
S >>>. 0> >> >>, 1> >> >>>
>>>>, 2> >> >>> >>>>>. S> YYY
>> >>> >> >> 2>> >>>.
xz >>> liblzma> >>> XZ >>>> >>>>>
>>>> > >> XYYYZZZS >> >>>>.
>>: 4.999.9beta> 49990091>>, 5.0.0> 50000002>>>.
>> >>
0 >> >> >>.
1 >> >>.
2 >>>> >>> >>>>>, >> >>>
>>>> >>.
>> >>> >>>> >>(>> >> >> >>)>
>> >>> >>> >> >>>>.
>>
xz> >>>> >>> >> > >>> XZ_DEFAULTS, XZ_OPT
>> >>>> >>>>, >>>>> >>>
>>>> >> >>>>>. >>> >> >>>>
>>> >>>>, >>> >> >>> >>>
>>>>>. >>> getopt_long(3)>> >>>>,
>>> >>> >>>>> >>>.
XZ_DEFAULTS
>>>>, >>> >> >> >>>>>. >>
xz> >>> >>> >>> >>>> >>>
>> > >>> >>>>> >>>>>. >
>>> >>>>> >>> >>> >>>
>>>>>>, >>>>>>> XZ_DEFAULTS >>
>>> >>>> >>> >>>
>>>>>>>.
XZ_OPT xz >>>>> >> >> >> >> >>> >
>> >> xz> >>> >>>> >>
>>>>>. >> >>, xz> >>>> >>
>>>> >>> >> GNU tar(1) >>:
XZ_OPT=-2v tar caf foo.tar.xz foo
>> >>, >>>>>> XZ_OPT > >>>>,
>>>>>> >> >> >>> >>> >
>>>>. >>> >>> >>> XZ_OPT >>
>> >>>> >>>> >>>>>. >>
>>, sh(1) >>>>>> >>>> >>> >>
>>>>:
XZ_OPT=${XZ_OPT-"-7e"} export XZ_OPT
LZMA >>>> >>>
xz> >>> >>> >>> LZMA >>>> 4.32.x>>
>> > >> lzma, unlzma lzcat> >> >>>>>.
>>>> >> LZMA >>>>> XZ >>>>> >>>
>>> >>>>> >> >>> >> > >>>>.
>>> >>>> >> >>> >>> >>> >>
>>>>.
>> >> >> >>
>> >> >> >>> >> >> >>> xz> LZMA
>>>>> >>>> >>>>. >> >>> >>>
>> >> >>> >> >>>> >>> >>>
>>>>> >>>>>. >>>> >>> >>
>>> >>> >>>> >> >>>>>.
>> xz LZMA >>>>
-0 256 KiB >>
-1 1 MiB 64 KiB
-2 2 MiB 1 MiB
-3 4 MiB 512 KiB
-4 4 MiB 1 MiB
-5 8 MiB 2 MiB
-6 8 MiB 4 MiB
-7 16 MiB 8 MiB
-8 32 MiB 16 MiB
-9 64 MiB 32 MiB
>>>> >> >>> >> >>>> >>> >>>
>>> >>>, LZMA >>>>> XZ >>>>>>
>>>> >>>> >> >>>> >>>>:
>> xz LZMA >>>> 4.32.x
-0 3 MiB >>
-1 9 MiB 2 MiB
-2 17 MiB 12 MiB
-3 32 MiB 12 MiB
-4 48 MiB 16 MiB
-5 94 MiB 26 MiB
-6 94 MiB 45 MiB
-7 186 MiB 83 MiB
-8 370 MiB 159 MiB
-9 674 MiB 311 MiB
XZ >>>>> >> >> >> >>>> -6>>> LZMA
>>>>> >> >> >> >>>> -7>>>. >
>>>>> >>>> >>> >> >>>>
8MiB>>>.
>>> vs >>>> .lzma >>
>>> >>>> >> >>> .lzma >>>
>>>>>. LZMA >>>>> >> >>> >>> >
>>>> >> >>> >>> >>>>>. > >>
>>>> >> >>> '> > >>' >> >>>>
>> >> >>>>> >>> > >>> end-of-payload
>>> >>>> >>> >>>>. LZMA >>>>>
>>>> >>> >>> >> >>>> >> >>>
>>> > > >> > >> >>> >>>>>.
xz> .lzma >>> end-of-payload >>> >>> >>>>
>> >> >>> >> >>>>>, xz> >> >>
.lzma >>> end-of-payload >>> >>>>, .lzma >>>
>>>> >> >> >>> '> > >>'>>
>>>>>. > >>> >> >>>> >>> >>>
> >>>>. >> >>, >>>> >>> .lzma >>
>> >>>>> >>> >>>> > >>> >>>
>>>>>. > >>> >>>, LZMA >>>> >>
LZMA SDK> >>>> .lzma >>> >> > >> >>
>>> >>>>>>>.
>>>> >> .lzma >>
.lzma >>> lc >> 8>> >>>>>, lp >> 4>>
>>>>>>. LZMA >>>>> >> lc >> lp >>
>>>>>> >>> >>> > >>>, >>> >>
>> > lc=3 >> lp=0 >> >>>>>. >> lc >>
lp >>>> >> >>> xz> LZMA SDK>>>
>>>>>.
liblzma> LZMA1 >> >>>>>> lc >> lp >> >>
4> >>>> >>>>. >>> .lzma >>> >> >
>>> >>>> xz> >>> >>> > >>>>.
LZMA >>>>> 2^n (2> >>)>>> >> >>>>>
>> .lzma >>> >>>> >>>>> >>>
>>>> >>> >> >>> >> >>>>.
liblzma>>> 2^n, 2^n + 2^(n-1) >>>> >>> >> .lzma
>> > >>>>>>. >> >> .lzma >>> >>>
> >> >>>> >>>>>.
>> .lzma >>> liblzma >> >>>> > >>>
>>>> >>> > >>> >>>> >>> >>
>>>>.
>>>>> >>> >
>> >>> >, LZMA >>>>> .lzma >>> >>
>> >> >>>> > >>> >>>>>. >>>>
>>, >>>>>. LZMA >>>>>> .lzma >> >>
>> >>> >>>> >>> >>>>> >>>.
.lzma >>> >>>> >> >>> >>>> >>>>
>>, xz >>> --single-stream >>> >>>> >>>
>> >>> >>>>>. > >>>> >>>
>>>>> >>> >> >>>>> >>>> >>>
>>>> >>> > >> >>>>.
>>
>> >>>> >>>
>>>> >> >> >>>>> >>> >>> >>
>> >>>> >> >>> >>> >>>>>> XZ
>>>>> >>> >> >>> > >>>>. >>
>>> >>> >> >> >>> > >>> >>(>
>>> >>> > >> >>>>)>> >>>>>. XZ
>>>> >>> >>>>>> >> >>> >>>>
>> >>> >>>> >> >> >>>> >>> >
>>>>.
--rsyncable >>> >>> >> >>> xz >>>> >>
>>> > >>> >>> >>>> >> > >>
>>> (> >>> >> >> >>> >>>>) rsync
>>> >>> >>>>. > >>> >>> >>>
>> >>> >>> xz >>> >>>>> >>>>
rsync >>> >> >>>> >>> > >> >>>
>>> > >>>>.
>> .xz >> >> >>>>
XZ >>>>> >> >> .xz >> >> >>>> >>
>>> >>> >> >>> none> crc32 >>>
>>>> >> >>> >>>>. >>>>
--check=crc64> >>>>, >>>> >>>>> >>>
>> > --check=none >> --check=crc32 >>>
>>>>>>>.
>>>> >>>> >>>>, >> .xz >> >> >>
>>>>>>> >> >> >>> >>>>>, >>
>> >>> >>>> >>>>, >>>, >>>
>>> >>>> >> >>> >>> > >>>>.
XZ >>>>> BCJ >>> >>>>>, >> >>
>>>> >>> > >>>>.
>>
>>
foo >>> >> >> >> (-6) >> foo.xz >>>
>>> >>, >> >>> >>> >>> foo>
>>>>>:
xz foo
bar.xz> bar > >>> >>> > >> >>> >>>
>>> bar.xz> >>>> >>>>:
xz -dk bar.xz
>> >> >> -6 >>> >>>>, >> > >>
>>> >>>> >> >>(>> 48 Mib, 5B)> -4e >>
>>(-4 --extreme)> >>>> baz.tar.xz >>> >>>>:
tar cf - baz | xz -4e > baz.tar.xz
>> > >>> >>> >> >>>> >> >>>
>>>>> > >>>>:
xz -dcf a.txt b.txt.xz c.txt d.txt.lzma > abcd.txt
>> >> >> >>
GNU> *BSD>>> find(1) >>> xargs(1) >>>> >>
>>> >>> >> >>> > >>>>:
find . -type f \! -name '*.xz' -print0 \ | xargs -0r -P4 -n16 xz -T1
xargs(1) > -P >>>> xz >>>>> >> >>
>>> >>>>>. -n >>> >> >> >>> >>
>> >>>>>>. >>> >>> >>>> >>>
1>>>>>>. >>> >> >>> >> >>>
xargs(1) > >>>>>> >>>> xz >>>>>
>>> 100>> >>> >>> >>> >> >>>>
>>>> >>>>.
xz> -T1>>> >>>> >>->>> >>>
>>>>>. xargs(1) >> >> >> >>> >>> >
>> >>>>>.
>> >>
>> >>> >>> > >>> >>> >>>
>>>>>:
xz --robot --list *.xz | awk '/^totals/{print $5-$4}'
> >>>>>>> >>> >>> xz >>>
>>>>> >>>> >>>. >> sh(1)
>>>>>>> xz >>> >> >>> >>>
5.0.0>> >>> >>>>>. > >>> --robot >>>
>>>> >> >>> >> >>>> >>>>
>>>>:
if ! eval "$(xz --robot --version 2> /dev/null)" || [ "$XZ_VERSION" -lt 50000002 ]; then echo "Your xz is too old." fi unset XZ_VERSION LIBLZMA_VERSION
XZ_OPT >> >>> >> >>> >> >>> >>>
>>>>>, >> >> >> >>>>>, >> >>>
>>>>:
NEWLIM=$((123 << 20)) # 123 MiB OLDLIM=$(xz --robot --info-memory | cut -f3) if [ $OLDLIM -eq 0 -o $OLDLIM -gt $NEWLIM ]; then XZ_OPT="$XZ_OPT --memlimit-decompress=$NEWLIM" export XZ_OPT fi
>> >> >> >> >>
>> >> >> >>> >>> >>>>> LZMA2 >>
>> >> >>> >>>> >>>>>. >> >>>
>>>>> >>> >> >> >>> >>> >>>
> >>> >> >> >>>>.
-0 ... -9 >>> >>>> >>>> CompCPU >>>
--extreme >>> LZMA2 >> >>> >>>>> >>>
> >>> >> >>>>. >> >>>>> >>>
>> >>>> >>>>>>>:
Preset CompCPU
-0 0
-1 1
-2 2
-3 3
-4 4
-5 5
-6 6
-5e 7
-6e 8
>> >>> >>> > >>> > >>>>(>:
32MiB)> >> >>>> >>>>>>, xz -8 >>>
>>> >>> > >> >>> >>>> >>>, >
> >>>> >>> >> > >> CompCPU >> >>
>(>: 1)>> >>> > >>>>:
xz --lzma2=preset=1,dict=32MiB foo.tar
> >>> >>, > >>> >>>> > >>>>>>
xz -6>> > >>>>>. >>>, CompCPU >> >>
>>>> >> > >>>>>> >> >>>
>>>> >>>. > >>>>> >>>> >>>
>> >> >>> >>>>> >>> >
>>>>>> >> >>> > >>> >>>>>
>>>>>. >>>> >>> LZMA2> >>>>
>>>> > >>> >>>>>>> >> >>>
>> > >> > >> >> >>>> >> >
>>>>.
>> >>>>> >> >> >>>>>> >>>>
>> >> >>>> >> >>, >>> >> >>
>>> >>> >>> >>>> >>>>>, xz -9
>>> 64MiB >>> >>>> >>>>> >>> >
>> >> >>> >>> >> >>>>:
xz -vv --lzma2=dict=192MiB big_foo.tar
> >>>>> >> -vv (--verbose --verbose) >>>
>>>> >> > >> >> >>>> >>> >>>
>>> >>>>> >>> > >>>>. >> >>>
>> >>>> > > >>>>> >>>> >>>>
>>> >>>> >>>> > >>> >> >>>>
>> >>> >>>>>>.
>>> >> >>> >> >>> >> >>
>>>>>, >> >>> >>> >>>> >>
>>>> > >> >>>>. >> >>, >>>>
>>>>> >> >>> >>> >> >>>>. >>
>>> >> -6e (-6 --extreme) >>> >> >>>
>>>> >>>> >>> 64KiB> >>>>>
>>>>>. >> >>> XZ >>>>(>> --check=crc32
>>> >> >>)> 100KiB >>> >>> >>>>
>>> > >>>>.
xz --check=crc32 --lzma2=preset=6e,dict=64KiB foo
>>> > > >>>> > >> >>> >> >,
>>> >> >> >(lc)> >> >> >(pb)>
>>>> >>> > >> >>>>. >>> >>
>> >(lp)> >> >>>> > >> >>> > >>
>>>>> >> lc >> pb >> > >>>>>. >>
>>, >> >> >> >>>> US-ASCII >>>>
>>>>>>, >>> >> >>> xz -6e >>>
>>>> >>>> >> >>(>> 0.1% >>) >>
>>> >>> >> >>>>(lc=4> >>>
>>>>>>>):
xz --lzma2=preset=6e,pb=0,lc=4 source_code.tar
LZMA2> >> >>> >> >>>> >> >> >>>
>> >>>> >>> > >>>>. >> >> x86-32
>> x86-64 >> >>>>>> x86 BCJ >>> >>>>
>>> >>:
xz --x86 --lzma2 libfoo.so
>>> >> >>> >>> >>> >>>>>.
--x86> --lzma >>> >>>> xz>> >>> >>>,
LZMA2 >>>> >> >>> >>> > >>, >>
>>> >>> >>> x86 BCJ >>> >>> > >>
>>>>>.
LZMA2> >> >>> >>> >>> >>> >>>
>>>> > >>>>. PNG> >> >>>>>>,
PNG>> >> >> >>>> >> > >>> >>>
>>>>>, >> >>> >>> >> Deflate>
>>>> >>>>>.
>> >> >>>> >>>> >> >>> TIFF>
>>>> >> >>> >>>>. >> >>> >>
>>>>> >>>> >>> >>> >> >>>>>
>>>>>. >> >>, 24>> RGB >>>> >>
dist=3 >> >>>> >> >>>> >>, LZMA2 >>>
3>>> >>> >>>> pb=0 >> >>>> >>>
>>>>>>:
xz --delta=dist=3 --lzma2=pb=0 foo.tiff
>> >>>> >> >>>>> >> >>>(>: .tar),
>> >>>> >> >>> >>> >>> >>
>>>> >>>> >> >>> >>>>>.
>> >>
xzdec(1), xzdiff(1), xzgrep(1), xzless(1), xzmore(1), gzip(1),
bzip2(1), 7z(1)
XZ >>>>:
XZ >>>>:
LZMA SDK:
Tukaani 2024-02-25 XZ(1)