On Wed, Jun 05, 2024 at 09:57:26PM +0700, Robert Elz wrote:
Also note that to actually put floating support in the shell, more is
needed than just arithmetic, you also need floating comparisons in test
(or in bash, in [[ ) and a whole bunch more odds and ends that aren't
obvious until you need them, and they're just not there (like a mechanism
to convert floats back into integers again, controlling how rounding happens).
Ironically, that last one is the one we already *do* have.
hobbit:~$ printf '%.0f\n' 11.5 22.5 33.5
12
22
34
As long as you're OK with "banker's rounding", printf does it.