Initial current working directory

Because the cwd needs to be set where the grunt file is located. Is there a way to get the Initial current working directory? In Gulp they have the process.env.INIT_CWD.

Start by tracing how Grunt determines and exposes the current working directory, using the issue's comparison with Gulp's process.env.INIT_CWD as context. Done means providing a documented way for tasks to access the initial working directory; no file or test is named in the issue.

Written by the indexing model from the issue text.