How do I Grep through a Sub Directory
If you are looking from something that is contained in a file but you
don't know which directory it is in do the following:
find . -name "*" | xargs grep -i something
This will find all of the files in the directory and below and grep for
the string something in those files!
If you use -il on grep then it will only list the files and will stop
with the first file found in the directory that has a match.