Get the index of a value in a Bash array

Question

I have something in bash like

myArray=(\'red\' \'orange\' \'green\')

And I would like to do something like

echo ${         


        

Answer 1

I like that solution:

let "n=(`echo ${myArray[@]} | tr -s " " "\n" | grep -n "green" | cut -d":" -f 1`)-1"

The variable n will contain the result!