[tbatterii]

What makes eshell awesome is mostly that it blurs the lines between bash and elisp, you sort of kind of can use them together. Unfortunately the manual does not do this feature justice as it is largely incomplete. This article is the best i've found.

http://www.masteringemacs.org/articles/2010/12/13/complete-g...

And of course eshell is just a buffer so you can surf through the output with all the available commands you typically use.