NUMFMT(1) User Commands NUMFMT(1)
NAME
numfmt - Convert numbers from/to human-readable strings
SYNOPSIS
numfmt [OPTION]... [NUMBER]...
DESCRIPTION
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=N
replace the number in input field N (default is 1)
--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)
--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, ...
FORMAT must be suitable for printing one floating-point argument '%f'. Optional quote (%'f) will enable --grouping (if supported by cur-
rent locale). Optional width value (%10f) will pad output. Optional negative width values (%-10f) will left-pad output.
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 con-
version error is diagnosed, but the exit status is 0. With --invalid='ignore' conversion errors are not diagnosed and the exit status is
0.
EXAMPLES
$ 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 | numfmt --header --field 2 --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: <http://www.gnu.org/software/coreutils/> Report numfmt translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Assaf Gordon.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.
SEE ALSO
The full documentation for numfmt is maintained as a Texinfo manual. If the info and numfmt programs are properly installed at your site,
the command
info coreutils 'numfmt invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 NUMFMT(1)