NUMFMT

Section: User Commands (1)
Updated: March 2016
Index Return to Main Contents
 

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 current 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 conversion 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
 

AUTHOR

Written by Assaf Gordon.  

REPORTING BUGS

Report numfmt bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report numfmt translation bugs to <http://translationproject.org/team/>  

COPYRIGHT

Copyright © 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.


 

Index

NAME
SYNOPSIS
DESCRIPTION
UNIT options:
EXAMPLES
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 23:43:56 GMT, January 17, 2018