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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=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 white-
              space 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  sta-
       tus  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 -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
AUTHOR
       Written by Assaf Gordon.
REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>;
       Report   numfmt   translation    bugs    to    <https://translationpro-
       ject.org/team/>
COPYRIGHT
       Copyright  (C) 2018 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.
SEE ALSO
       Full documentation at: <https://www.gnu.org/software/coreutils/numfmt>;
       or available locally via: info '(coreutils) numfmt invocation'
GNU coreutils 8.30                 July 2018                         NUMFMT(1)