Useful commands on MacOS
Change extension of files (including sub directories) from jsx
to js
for target in $(find ./ -type f -name '*.jsx'); do mv "$target" "${target%.jsx}.js"; done;
Find a text in a path
-R: Recursively search subdirectories
grep "whatever" -R .
Find large files in a path
G: Gigabyte | M: Megabyte
sudo find -x ~/workspace -type f -size +1G