How to find files with certain text in the Terminal

grep -r 'text goes here' path_goes_here

use spotlight

mdfind "text goes here"
mdfind -onlyin /home/user/Desktop -live "live update"

don't forget to look at:

man mdfind

1. Through Ack

brew install ack 
ack "text goes here"

2. Through find

find . |grep "text goes here"

3. Through grep

grep -RnslI "text goes here"