linux find

• Find contents of all source
  find . -type f -exec grep -l "keywords" {} \;

• Find specific extension file
  find . -type f ( -name ".java" -o -name ".jsp" ) -exec grep -RIHn '^\s*.System.out.println' {} \;
  find . -name '.js' -exec grep -RIHn '^\s.console.log' {} \;