How to perform arithmetic operations on real numbers in Shell?

Question

Command line

How to perform arithmetic operations on real numbers in Shell?
If you use expr - it gives an error "non-integer argument"

Answer 1

Use bc / awk to calculate floating point values ​​and store the result in a variable, or create a simple C program that will be in the directory with the script and give you the desired result.
stackoverflow.com/questions/12722095/how-can-i-get... for example, you can see here