nvm

bash-3.2$ git clone https://github.com/creationix/nvm.git ~/.nvm && cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`
Cloning into '/Users/mona/.nvm'...

remote: Counting objects: 4417, done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 4417 (delta 1), reused 0 (delta 0), pack-reused 4408
Receiving objects: 100% (4417/4417), 1.12 MiB | 608.00 KiB/s, done.
Resolving deltas: 100% (2589/2589), done.
Checking connectivity... done
Note: checking out 'v0.31.0'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b new_branch_name

HEAD is now at 2176894... v0.31.0
bash-3.2$
bash-3.2$ ls
CONTRIBUTING.md	Makefile	bash_completion	nvm-exec	package.json
LICENSE.md	README.markdown	install.sh	nvm.sh		test
bash-3.2$ . ~/.nvm/nvm.sh
bash-3.2$ vim ~/.bashrc
syntastic: error: your shell /usr/local/bin/fish doesn't use traditional UNIX syntax for redirections
Press ENTER or type command to continue
bash-3.2$ source ~/.bashrc
bash-3.2$ nvm install 4.0
Downloading https://nodejs.org/dist/v4.0.0/node-v4.0.0-darwin-x64.tar.xz...
######################################################################## 100.0%
Now using node v4.0.0 (npm v2.14.2)
Creating default alias: default -> 4.0 (-> v4.0.0)
bash-3.2$ nvm use 4.0
Now using node v4.0.0 (npm v2.14.2)
bash-3.2$ cd ..
bash-3.2$ cd interviews/
bash-3.2$ cd mean/
bash-3.2$ ls
app			bower_components	index.html		package.json		todomvc
bower.json		gulpfile.babel.js	mean			test
bash-3.2$ yo meanjs
You're using the official MEAN.JS generator.
? What mean.js version would you like to generate? 0.4.0
0.4.0
? In which folder would you like the project to be generated? This can be changed later. mean
Cloning the MEAN repo.......
Error: Command failed: /bin/sh -c git clone --branch v0.4.0 https://github.com/meanjs/mean.git mean
fatal: destination path 'mean' already exists and is not an empty directory.

bash-3.2$ sudo rm -rf mean/
Password:
bash-3.2$ yo meanjs
You're using the official MEAN.JS generator.
? What mean.js version would you like to generate? 0.4.0
0.4.0
? In which folder would you like the project to be generated? This can be changed later. mean
Cloning the MEAN repo.......
? What would you like to call your application? MEAN
? How would you describe your application? Full-Stack JavaScript with MongoDB, Express, AngularJS, and Node.js
? How would you describe your application in comma seperated key words? MongoDB, Express, AngularJS, Node.js
? What is your company/author name?
? Would you like to generate the article example CRUD module? Yes
? Would you like to generate the chat example module? Yes
Running npm install for you....
This may take a couple minutes.
Error: Command failed: /bin/sh -c cd mean && npm install
npm ERR! Darwin 14.5.0
npm ERR! argv "/Users/mona/.nvm/versions/node/v4.0.0/bin/node" "/Users/mona/.nvm/versions/node/v4.0.0/bin/npm" "install"
npm ERR! node v4.0.0
npm ERR! npm  v2.14.2
npm ERR! code ETIMEDOUT
npm ERR! errno ETIMEDOUT
npm ERR! syscall connect

npm ERR! network connect ETIMEDOUT 23.235.39.162:443
npm ERR! network This is most likely not a problem with npm itself
npm ERR! network and is related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/mona/interviews/mean/mean/npm-debug.log

    at ChildProcess.exithandler (child_process.js:203:12)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:817:16)
    at Socket.<anonymous> (internal/child_process.js:319:11)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:169:7)
    at Pipe._onclose (net.js:469:12)