I have assigned the text file content in the string variable, i should grep only string match line and that line split by = symbol and get the second column value

I have text file contents read and stored in a string variable using RED TEXT FILE activity, now i have to take the line that matches string and then that line looks to be “name=google”, here google string to get that is after = symbol. please help me if any workaround.
Here, read the variable that contents the whole file data, then grep by particular string, then fetch the string after the = symbol .