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)