Installing command line tools in OSX 10.9 Mavericks changes slightly than previous versions of MAC OSX , Now You Dont Have to install XCODE , you can install Command Line Tools stand alone ,
Just Simply Follow these steps
1 : Open terminal
2 : Type
xcode-select --install
in terminal
3: A pop-up windows will apear asking you about install tools
4 : choose install tools
Installing Command Line Tools
5 : wait install to finish it will take 30 minutes
Done