numfmt - Convert numbers from/to human-readable strings
numfmt [OPTION]... [NUMBER]...
Reformat NUMBER(s), or the numbers from standard input if none are
specified.
Mandatory arguments to long options are mandatory for short
options too.
- --debug
- print warnings about invalid input
- -d,
--delimiter=X
- use X instead of whitespace for field delimiter
- --field=FIELDS
- replace the numbers in these input fields (default=1); see FIELDS
below
- --format=FORMAT
- use printf style floating-point FORMAT; see FORMAT below for details
- --from=UNIT
- auto-scale input numbers to UNITs; default is 'none'; see UNIT below
- --from-unit=N
- specify the input unit size (instead of the default 1)
- --grouping
- use locale-defined grouping of digits, e.g. 1,000,000 (which means it has
no effect in the C/POSIX locale)
- print (without converting) the first N header lines; N defaults to 1 if
not specified
- --invalid=MODE
- failure mode for invalid numbers: MODE can be: abort (default), fail,
warn, ignore
- --padding=N
- pad the output to N characters; positive N will right-align; negative N
will left-align; padding is ignored if the output is wider than N; the
default is to automatically pad if a whitespace is found
- --round=METHOD
- use METHOD for rounding when scaling; METHOD can be: up, down, from-zero
(default), towards-zero, nearest
- --suffix=SUFFIX
- add SUFFIX to output numbers, and accept optional SUFFIX in input
numbers
- --to=UNIT
- auto-scale output numbers to UNITs; see UNIT below
- --to-unit=N
- the output unit size (instead of the default 1)
- -z,
--zero-terminated
- line delimiter is NUL, not newline
- --help
- display this help and exit
- --version
- output version information and exit
- none
- no auto-scaling is done; suffixes will trigger an error
- auto
- accept optional single/two letter suffix:
- 1K = 1000, 1Ki = 1024, 1M = 1000000, 1Mi = 1048576,
- si
- accept optional single letter suffix:
- 1K = 1000, 1M = 1000000, ...
- iec
- accept optional single letter suffix:
- 1K = 1024, 1M = 1048576, ...
- iec-i
- accept optional two-letter suffix:
- 1Ki = 1024, 1Mi = 1048576, ...
- N
- N'th field, counted from 1
- N-
- from N'th field, to end of line
- N-M
- from N'th to M'th field (inclusive)
- -M
- from first to M'th field (inclusive)
- -
- all fields
Multiple fields/ranges can be separated with commas
FORMAT must be suitable for printing one floating-point argument
'%f'. Optional quote (%'f) will enable --grouping (if supported by
current locale). Optional width value (%10f) will pad output. Optional zero
(%010f) width will zero pad the number. Optional negative values (%-10f)
will left align. Optional precision (%.1f) will override the input
determined precision.
Exit status is 0 if all input numbers were successfully converted.
By default, numfmt will stop at the first conversion error with exit status
2. With --invalid='fail' a warning is printed for each conversion
error and the exit status is 2. With --invalid='warn' each conversion
error is diagnosed, but the exit status is 0. With --invalid='ignore'
conversion errors are not diagnosed and the exit status is 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
GNU coreutils online help:
<https://www.gnu.org/software/coreutils/>
Report any translation bugs to
<https://translationproject.org/team/>
Copyright © 2022 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
<https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO
WARRANTY, to the extent permitted by law.
Full documentation
<https://www.gnu.org/software/coreutils/numfmt>
or available locally via: info '(coreutils) numfmt invocation'