alternative to readarray, because it does not work on mac os x

Question

I have a varsValues.txt file

cat varsValues.txt
aa=13.7
something=20.6
countries=205
world=1
languages=2014
people=7.2
oceans=3.4

And I wou

Answer 1

Try:

IFS=$'\n' vars=($(cut -d '=' -f1 varsValues.txt))
IFS=$'\n' values=($(cut -d '=' -f2 varsValues.txt))