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)
--header[=N]
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
UNIT options:
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, ...
FIELDS supports cut(1) style field ranges:
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.
