NUMFMT(1) >>>>> >>>>>>>> NUMFMT(1)
>>>>>
numfmt - >>>>> >>>>>>> >>/>>>
>>>>> >>>>> >>>>>>>
>>>>>>>
>>>>
numfmt [>>>>]... [>>>]...
>>>>>
>>>>> >>>>> >>>>>
(>>>>>>>)> >> >>>>>>> >>
>>>>>> >>>>>>>> >>> >>
>>>>> >> >>>>.
>>>>>>>>> >>>>>>>>>
>>>>>>>> >>>>>>> >>>>>>>
>>>>>>>> >>>>>>> >>>>>.
--debug
>>>>> >>>>>>> >>>
>>>>>> >>> >>>>>>
-d, --delimiter=X
>>>>>>> X >>>>> >>
>>>>>>> >>>>>>> >>>>>
>>>>>
--field=>>>>
>>>>>>> >>>>>>> >> >>>>
>>>>>> >>> (>>>>>>>=1)>
>>>> >>>>>> >>>>>
>>>>>>>>
--format=>>>>>
>>>>>>> >>>>> >>>>>>
>>>>>>> >>>> printf> >>>>
>>>>>>> >>>>> >>>>>>>>
--from=>>>>
>>>> >>>>> >>>>>> >>>>>
>>> >>>>>>>> >>>>>>> >>
'none'> >>>> >>>>>> >>>>>
>>>>>>>>
--from-unit=N
>>>>> >>> >>>> >>>>>>
(>>>>> >> >>>>>>> 1)
--grouping
>>>>>>> >>>>> >>>>>>>
>>>>>>>> >>>>>>> >>>
1,000,000. >> >>>>> >>>> >>
>>>>>>> >>>>>> C/POSIX
--header[=N]
>>>>> (>>>> >>>>>) >>> N
>>> >>>> >>>>>>> >> N >> 1
>>> >> >>>>>
--invalid=>>>
>>> >>>>> >>>>>>> >>>
>>>>>>>> >>>> >> >>>>
>>>>>: abort (>>>>>>>)> fail>
warn> ignore
--padding=N
>>> >>>>>>>> >>> N
>>>>>> N >>>>>> >>>>>>
>>>>>>> N >>>>>> >>>>>>
>>>>>>> >>>>>>> >>>>>
>>> >>> >>>>>> >>>> >> N>
>>>>>>> >> >>>>> >>>>>
>>> >>>>> >>>>> >>>>>
--round=>>>>>
>>>>>> METHOD >>>>>>> >>>
>>>>>>> >>>> >> >>>> METHOD:
up, down, from-zero (>>>>>), towards-zero, nearest
--suffix=SUFFIX
>>> SUFFIX >>> >>>>>
>>>>>>>>> >>>>> SUFFIX
>>>>>>> >> >>>>>
>>>>>>>>
--unit-separator=SEP
>>>> SEP >>> >>>>> >>>>>>>
>> >>>>>>>>> >>>>> SEP
>>>>>>> >> >>>>>
>>>>>>>>
--to=UNIT
>> >>>>> >>>>> >>>>>>>>
>>> >>> UNITs> >>>> UNIT >>>>>
--to-unit=N
>>> >>>> >>>>>>>> (>>>>>
>> 1 >>>>>>>)
-z, --zero-terminated
>>>> >>>>> >> NUL> >>>>
>>>>> >>>>>>
--help >>>> >>> >>>>>>>> >>>>>
--version
>>>> >>>>>>> >>>>>>>
>>>>>
>>>>>> UNIT:
none >> >>> >>>>>> >>>>>>
>>>>> >>>>>>> >>> >>>
auto >>>> >>>>> >>>>>>>> >>
>>>/>>>>>: 1K = 1000, 1k = 1000, 1Ki = 1024, 1M
= 1000000, 1Mi = 1048576,
si >>>> >>>>> >>>>>>>> >>
>>> >>>>: 1k = 1000, 1K = 1000, 1M = 1000000, ...
iec >>>> >>>>> >>>>>>>> >>
>>> >>>>: 1K = 1024, 1k = 1024, 1M = 1048576, ...
iec-i >>>> >>>>> >>>>>>>> >>
>>>>>: 1Ki = 1024, 1ki = 1024, 1Mi = 1048576, ...
>>>> FIELDS >>>>>> >>>>>> >>>>
cut(1):
N >>>>> N> >>>> >> 1
N- >> >>>>> N> >>> >>>>>
>>>>>
N-M >> >>>>> >>> N >>> >>>>>
>>> M (>>>>>)
-M >> >>>>> >>>>> >>> >>>>>
>>> M (>>>>>)
- >>>> >>>>>>
>>>> >>> >>>>>>/>>>>>>>>
>>>>>>>> >>>>>>
>>> >> >>>> FORMAT >>>>>>>
>>>>>> >>>> >>>>> >>>>>
>>>> '%f'. >>>>>>>> >>>>>>>>>
(%'f) >>>>>> --grouping (>>> >>>
>>>>>>> >> >>>>>>>>>
>>>>>>> >>>>>>>). >>>>
>>>>> >>>>>>>>>> (%10f) >>>>>
>>>>>>>>. >>>>> >>>>>>
>>>>>>>>> (%010f) >>>>> >>>>>
>>>>>>. >>>>> >>>>>>>
>>>>>>>>>> (%-10f) >>>>>
>>>>>>>> >>>>>>. >>>>>
>>>>>>>>>> (%.1f) >>>>>>>
>>>>> >>>>>>> >> >>>>>>>>.
>>>> >>>>>> >> 0 >>> >>
>>>>> >>>> >>>>> >>>>>>>>
>>>>>. >>>>>>>>>> >>>>>>
numfmt >>> >>> >>> >>>>> >>
>>>> >>>> 2. >> --invalid='fail' >>>>>
>>>>> >>> >>> >>>>> >>>>>
>>>> >>>>>> 2. >> --invalid='warn'
>>>>>> >> >>> >>>>>> >>>
>>>> >>>>>> >> 0. >> --invalid='ignore'
>> >>>>>> >>>>> >>>>>>>
>>>>> >>>> >>>>>> 0.
>>>>>
$ numfmt --to=si 1000
-> "1.0k"
$ numfmt --to=iec 2048
-> "2.0K"
$ numfmt --to=iec-i 4096
-> "4.0Ki"
$ echo 1K | numfmt --from=si
-> "1000"
$ echo 1K | numfmt --from=iec
-> "1024"
$ df -B1 | numfmt --header --field 2-4 --to=si
$ ls -l | numfmt --header --field 5 --to=iec
$ ls -lh | numfmt --header --field 5 --from=iec --padding=10
$ ls -lh | numfmt --header --field 5 --from=iec --format %10f
>>>>>>
>>>> >>>> >>>>>>.
>>>>>>> >> >>>>>>>
>>>> >> >>>>>> >>>: bug-coreutils@gnu.org
>>>> GNU coreutils >>>>>>>:
>>>>>> >>>> >>>>>>>>
>>>>>>> >>>:
>>>> >> >> >>>>> >>>>> >>>
>>>> >>>>>
>>>> >>>>> (C) 2026 >>>>>
>>>>>>>>> >>>>> (Free Software Foundation,
Inc.). >>>>> GPLv3+: GNU GPL >>>>>>> 3 >>
>>>>. .
>>> >>>>>> >>: >>> >> >>
>>>>>> >>>>>> >>>>>>. >>
>>>> >> >>>>> >>> >>>>>
>>>> >>>> >> >>>>>>>.
>>>> >>>>>
>>>>>>> >>>>>>
>> >>>> >>>>>> >>>: info '(coreutils)
numfmt invocation'
>>>>>
>>>>>> >>> >>>>>> >>
>>>>>> >>>>>> >>>>
>>>>>>>
>>> >>>>>>> >> >>>>>
>>>>>>> >>>> >>>> >>>
>>>>>> >>>>>>> 3
>> >> >>>>
>>>>>>> >>> >>>> >>>>
>>>>>. >> >>>> >> >>>>>>.
>>> >>>> >> >>>>> >> >>>>>
>>>> >>>>>> >>>> >>>>
>>>>> >>>> >>>>>>>> >>>
>>>>> >>>> >>>>>>>>>:
.
GNU coreutils 9.11 >>>>> 2026 NUMFMT(1)