Shell loops using non-integers?

Question

I wrote a .sh file to compile and run a few programs for a homework assignment. I have a \"for\" loop in the script, but it won\'t work unless I use only integers:

Answer 1

I usually also use "seq" as per the second answer, but just to give an answer in terms of a precision-robust integer loop and then bc conversion to a float:

#!/bin/bash 

for i in {2..10..2} ; do 
  x=`echo "scale=2 ; ${i}/10" | bc`
  echo $x
done

gives:

.2 .4 .6 .8 1.0