Re: scientific notation in Bash

[Greg Wooledge]

On Tue, Mar 15, 2022 at 01:03:54PM +0100, Ante Bilandzic wrote:
> However, there seems to be the corner case, when I was expecting that Bash
> will be able to handle the problem internally: the case when an integer is
> written in a scientific notation, using 'e' or 'E'.

As you have already observed, bash doesn't handle that.  You would need
to run some external utility (e.g. awk) to convert those into a form
that bash can read.

unicorn:~$ awk -v n=4.4e5 'BEGIN {printf("%d\n", n)}'
440000
unicorn:~$ awk -v n=4.4e9 'BEGIN {printf("%d\n", n)}'
4400000000