Bash Reformat Numbers

$ n=1023555
$ m=$(numfmt --to=si n)
$ echo $m
1.1M

$ n=1023555 $ m=$(numfmt --to=si n) $ echo $m 1.1M

--to=none     # no scaling. Output: 1023555
--to=si       # International System of Units (SI) standard. Output 1.1M
--to=iec      # International Electrotechnical Commission (IEC) standard. Output: 1.1Mi 
--to=iec-i    # International Electrotechnical Commission (IEC) standard. Output: 1.1M
--to=auto     # ‘auto’ can only be used with --from.

--to=none # no scaling. Output: 1023555 --to=si # International System of Units (SI) standard. Output 1.1M --to=iec # International Electrotechnical Commission (IEC) standard. Output: 1.1Mi --to=iec-i # International Electrotechnical Commission (IEC) standard. Output: 1.1M --to=auto # ‘auto’ can only be used with --from.