convert Arabic numerals to English
number utility prints the English equivalent of the
number to the standard output, with each 10^3 magnitude displayed on a
separate line. If no argument is specified,
reads lines from the standard input.
The options are as follows:
- Display the number on a single line.
number understands negative numbers
(although they must be preceded by ‘--’ if they are on the
command line to avoid being mistaken for options) and numbers in scientific
notation (e.g. 1.234E+05).