How to search and replace text in multiple files in linux
Here's how to replace a string of text in multiple files under a specific directory and all it's sub directories.
cd /to/directory/containing/files
find . -name '*.php' | xargs perl -pi -e "s/OLDSTRING/'NEWSTRING'/g;"
Real world example:
Let's say we want to replace the following in every .php file:
'profile', 'load_profile'
with new string
'profile_load_profile'
Hence, we do the following...
cd /home
find ./ -name '*.php' | xargs perl -pi -e "s/'profile', 'load_profile'/'profile_load_profile'/g;"