install brew in mac os x

Install git beforehand.

1. git clone https://github.com/mxcl/homebrew.git

2. sudo mv homebrew /usr/local/

3. cd /usr/local/homebrew/bin

4../grew -v

5. reopen one terminal.

6.vi .bash_profile

7. Add a sentence export PATH=$PATH:/usr/local/homebrew/bin

8. Save

9. source .bash_profile