react-native: command not found

I am getting -bash: react-native: command not found error while creating react-native project.

Below are the additional info

1. brew --version
   homebrew 0.9.9
2  brew info watchman
   watchman `enter code here`stable 4.50
   /usr/local/Cellar/watchman/4.4.0
3. brew info flow
   stable 0.24.1
   /usr/local/Cellar/flow/0.24.1
4. brew info node
   stable 6.1.0
   /usr/local/Cellar/node/6.1.0
5. npm -version
   3.8.6
6. echo $PATH
/Users/Ashok/.rbenv/shims:/Users/Ashok/.rbenv/shims:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

I tried suggested steps from the below link but still i am getting same error.

1. react-native-command-not-found

I don't have any "npm" directory which they have specified in the solution

Ashoks-MacBook-Pro:share Ashok$ ls
aclocal     doc     info        ruby-build  zsh
autoconf    emacs       man     systemtap

But i found npm file exist in below location.

/usr/local/Cellar/node/6.1.0/etc/bash_completion.d

I uninstalled react-native and installed again but still i am facing same issue.