Linux Bash Case Statements - How to Make a Statement for a Number Range?

Question

Hi,

I'm trying to make a case statement where it tests to see if a number falls into a certain range. This is what it looks like (just a portion of the code):

case $score in
[90-100]) echo "A grade"
;;
[80-89]) echo "B grade"
;;
*) echo "Very bad grade!!!"
;;
esac

I don't think I have the correct syntax for the number ranges in the case statements. I've searched and searched and could not find what the correct syntax is - can someone help?

Answer 1

case $score in

[90-100]*) echo "A grade"

;;

[80-89]*) echo "B grade"

;;

*) echo "Very bad grade!!!"

;;

esac

Answer 2

Bash Case Statement

Answer 3

Linux Case Statement