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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=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, near‐
              est

       --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)


       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

       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



GNU coreutils 8.22                                  November 2016                                           NUMFMT(1)