[chef] Oracle Cookbook

[Anju M R < >]

I'm trying to learn chef by developing a cookbook to install and configure
Oracle. 

In Oracle configuration I've to do a part of the procedure as root user, and
the rest as oracle user. 

So my doubt is if we bootstrap a node as root, will i be able to run a script
as oracle user?

Now I'm not able to execute a script as oracle user.