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

Hi adding yet another way to do this using 'cut',

echo $string | cut -d'.' -f3,5 | tr '.' ' '

This gives you the following output: 12 2