chmod on directories and files

(http://movabletripe.com/archive/recursively-chmod-directories-only/)
For directories:

find . -type d -exec chmod 755 {} \;

For Files:

find . -type f -exec chmod 644 {} \;

Cheat sheet:
(http://www.rain.org/~mkummel/unix.html)

	execute permission	= 1
	write permission	= 2
	write and execute (1+2)	= 3
	read permission	= 4
	read and execute (4+1)	= 5
	read and write (4+2)	= 6
	read, write and execute (4+2+1)	= 7

Add the number value of the permissions you want to grant each group to make a three digit number, one digit each for the owner, the group, and the world. Here are some useful combinations. Try to figure them out!
	chmod 600 {filespec}	You can read and write; the world can't. Good for files.
	chmod 700 {filespec}	You can read, write, and execute; the world can't. Good for scripts.
	chmod 644 {filespec}	You can read and write; the world can only read. Good for web pages.
	chmod 755 {filespec}	You can read, write, and execute; the world can read and execute. Good for programs you want to share, and your public_html directory.