combine find and grep

sample.sh

# (a) ignore certain folders
#     like: `node_modules, .cache, .cordova, .heroku, .a127, .npm` etc.
# (b) look in package.json only
# (c) find case-insensitve matches to the word: commit
# (d) `-o` means "OR" ... for example, given: `expr1 -o expr2`, expr2 is not evaluated if expr1 is true.
find ~/ \( \
              -name node_modules \
              -o -name '.cache' \
              -o -name '.cordova' \
              -o -name '.heroku' \
              -o -name '.a127' \
              -o -name '.npm' \
            \) -prune \
-o -name "package.json" -exec grep -i --color -Hn "commit" {} 2>/dev/null \;