Find cell containing part of a string.

I have a cell "A" of strings like {'A0_V2'; 'A0_V1'; 'B2_V4';...}. I want to find which numbers of A contains 'A0'. The answer can be ans = (1, 2).

Answer 1

[Image Analyst]

Try contains():

A = {'A0_V2'; 'A0_V1'; 'B2_V4'}
rowsWithString = contains(A, 'A0')