Promised based chain to manage shell call (asynchronously obviously).
To have access to dpsh (cli env with deep-shell, deep-restful, deep-views and deep-node loaded) :
> npm install -g deep-shell
example of script in
deep-shell/bin/bmpv that bump package.json version, update git tag, push everything and publish on npm.
> cd your/git/npm/module> bmpv minor
> npm install deep-shell
var deep = ;;deep......;