One very useful command for locating files and performing operations on them is find with the exec option.

find [path] [arguments] -exec [command] {} ;

I’ve found this to be particularly useful when adjusting permissions to allow group owners to list a directory:

find [path] -type d -exec chmod g+x {} ;

The part that’s tricky to remember is the escaped semicolon, hence this post. Applying it only to directories avoids issues with normal files being treated as executable. The simpler option, chmod -R, would apply the +x to normal files.