How to extract numbers from a string?

Question

I have string contains a path

string=\"toto.titi.12.tata.2.abc.def\"

I want to extract only the numbers from this string.

To extrac

Answer 1

Using awk:

arr=( $(echo $string | awk -F "." '{print $3, $5}') )
num1=${arr[0]}
num2=${arr[1]}