Using git diff, how can I get added and modified lines numbers?

Question

Assuming I have a text file

alex
bob
matrix
will be removed
git repo

and I have updated it to be

alex
new line here
another         


        

Answer 1

Line numbers of all uncommitted lines (added/modified):

git blame  | grep -n '^0\{8\} ' | cut -f1 -d:

Example output:

1
2
8
12
13
14