How to install Homebrew on OS X?

Question

I\'m trying to install Homebrew on OS X.

According to the Homebrew site I should type

brew install wget

and all I get is

Answer 1

After I had tried everything described, I looked up into the folder permission of brew in /usr/local/etc/. Somehow the permission were changed and I was not able to open the folder. I changed the folder permissions(with chmod) with same permissions as the other folders and brew start working.