npm install
//instala pacote no node globalmente
npm install -g package
//instala pacote localmente
npm install pacote
//package.json
//http://wiki.commonjs.org/wiki/Packages/1.0
{
"name" : "app-name"
, "description" : ""
, "version" : "0.1.0"
, "dependencies" : {
"express" : "2.5.0"
, "mongoose" : "2.3.7"
, "nodeunit" : "0.5.5"
, "ejs": "0.0.1"
}
}