Find all files matching 'name' on linux system, and search with them for 'text'

Question

I need to find all instances of \'filename.ext\' on a linux system and see which ones contain the text \'lookingfor\'.

Is there a set of linux command line operation

Answer 1

Go to respective directory and type the following command.

find . -name "*.ext" | xargs grep 'lookingfor'