[ale] real numbers in bash scripts?

[dsj at sylvester.dsj.net (David S. Jackson)]

Hi,

I was trying to find a way to handle real numbers (percentages)
in BASH.  It appears bash handles integers natively, but I'm not
sure how to do real numbers.  Do you have to create a function
that calls some external tool, like bc or something?

TIA

--
David S. Jackson                        dsj at dsj.net
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